<?xml version="1.0" encoding="US-ASCII"?>
<!--XBRL Document Created with Wdesk from Workiva-->
<!-- -->
<link:linkbase xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <link:roleRef roleURI="http://mygreendot.com/role/AccountsReceivable" xlink:href="gdot-20181231.xsd#AccountsReceivable" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/AccountsReceivableAccountsReceivableDetails" xlink:href="gdot-20181231.xsd#AccountsReceivableAccountsReceivableDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/AccountsReceivableReserveForUncollectibleOverdrawnAccountsActivityDetails" xlink:href="gdot-20181231.xsd#AccountsReceivableReserveForUncollectibleOverdrawnAccountsActivityDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/AccountsReceivableTables" xlink:href="gdot-20181231.xsd#AccountsReceivableTables" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/BusinessAcquisitions" xlink:href="gdot-20181231.xsd#BusinessAcquisitions" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/BusinessAcquisitionsAdditionalInformationDetails" xlink:href="gdot-20181231.xsd#BusinessAcquisitionsAdditionalInformationDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/BusinessAcquisitionsProFormaDetails" xlink:href="gdot-20181231.xsd#BusinessAcquisitionsProFormaDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/BusinessCombinationTables" xlink:href="gdot-20181231.xsd#BusinessCombinationTables" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/CommitmentsAndContingencies" xlink:href="gdot-20181231.xsd#CommitmentsAndContingencies" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/CommitmentsAndContingenciesNarrativeDetails" xlink:href="gdot-20181231.xsd#CommitmentsAndContingenciesNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/CommitmentsAndContingenciesPurchaseCommitmentsDetails" xlink:href="gdot-20181231.xsd#CommitmentsAndContingenciesPurchaseCommitmentsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/CommitmentsAndContingenciesTables" xlink:href="gdot-20181231.xsd#CommitmentsAndContingenciesTables" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/ConcentrationsOfCreditRisk" xlink:href="gdot-20181231.xsd#ConcentrationsOfCreditRisk" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/ConcentrationsOfCreditRiskDetails" xlink:href="gdot-20181231.xsd#ConcentrationsOfCreditRiskDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/ConsolidatedBalanceSheets" xlink:href="gdot-20181231.xsd#ConsolidatedBalanceSheets" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/ConsolidatedBalanceSheetsParenthetical" xlink:href="gdot-20181231.xsd#ConsolidatedBalanceSheetsParenthetical" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/ConsolidatedStatementsOfCashFlows" xlink:href="gdot-20181231.xsd#ConsolidatedStatementsOfCashFlows" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/ConsolidatedStatementsOfChangesInStockholdersEquity" xlink:href="gdot-20181231.xsd#ConsolidatedStatementsOfChangesInStockholdersEquity" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/ConsolidatedStatementsOfComprehensiveIncome" xlink:href="gdot-20181231.xsd#ConsolidatedStatementsOfComprehensiveIncome" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/ConsolidatedStatementsOfOperations" xlink:href="gdot-20181231.xsd#ConsolidatedStatementsOfOperations" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/DefinedContributionPlan" xlink:href="gdot-20181231.xsd#DefinedContributionPlan" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/DefinedContributionPlanDetails" xlink:href="gdot-20181231.xsd#DefinedContributionPlanDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/Deposits" xlink:href="gdot-20181231.xsd#Deposits" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/DepositsContractualMaturitiesDetails" xlink:href="gdot-20181231.xsd#DepositsContractualMaturitiesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/DepositsSummaryOfDepositsDetails" xlink:href="gdot-20181231.xsd#DepositsSummaryOfDepositsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/DepositsTables" xlink:href="gdot-20181231.xsd#DepositsTables" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/DocumentAndEntityInformation" xlink:href="gdot-20181231.xsd#DocumentAndEntityInformation" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/EarningsPerCommonShare" xlink:href="gdot-20181231.xsd#EarningsPerCommonShare" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/EarningsPerCommonShareAntidilutiveSharesDetails" xlink:href="gdot-20181231.xsd#EarningsPerCommonShareAntidilutiveSharesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/EarningsPerCommonShareBasicEarningsPerShareDetails" xlink:href="gdot-20181231.xsd#EarningsPerCommonShareBasicEarningsPerShareDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/EarningsPerCommonShareDilutedEarningsPerShareDetails" xlink:href="gdot-20181231.xsd#EarningsPerCommonShareDilutedEarningsPerShareDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/EarningsPerCommonShareTables" xlink:href="gdot-20181231.xsd#EarningsPerCommonShareTables" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/EmployeeStockBasedCompensation" xlink:href="gdot-20181231.xsd#EmployeeStockBasedCompensation" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/EmployeeStockBasedCompensationEquityGrantedDetails" xlink:href="gdot-20181231.xsd#EmployeeStockBasedCompensationEquityGrantedDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/EmployeeStockBasedCompensationExpenseDetails" xlink:href="gdot-20181231.xsd#EmployeeStockBasedCompensationExpenseDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/EmployeeStockBasedCompensationNarrativeDetails" xlink:href="gdot-20181231.xsd#EmployeeStockBasedCompensationNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/EmployeeStockBasedCompensationOptionActivityDetails" xlink:href="gdot-20181231.xsd#EmployeeStockBasedCompensationOptionActivityDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/EmployeeStockBasedCompensationRestrictedAndPerformanceStockUnitsGrantedDetails" xlink:href="gdot-20181231.xsd#EmployeeStockBasedCompensationRestrictedAndPerformanceStockUnitsGrantedDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/EmployeeStockBasedCompensationTables" xlink:href="gdot-20181231.xsd#EmployeeStockBasedCompensationTables" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/FairValueMeasurements" xlink:href="gdot-20181231.xsd#FairValueMeasurements" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/FairValueMeasurementsContingentConsiderationLiabilityDetails" xlink:href="gdot-20181231.xsd#FairValueMeasurementsContingentConsiderationLiabilityDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/FairValueMeasurementsFairValueHierarchyDetails" xlink:href="gdot-20181231.xsd#FairValueMeasurementsFairValueHierarchyDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/FairValueMeasurementsTables" xlink:href="gdot-20181231.xsd#FairValueMeasurementsTables" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/FairValueOfFinancialInstruments" xlink:href="gdot-20181231.xsd#FairValueOfFinancialInstruments" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/FairValueOfFinancialInstrumentsDetails" xlink:href="gdot-20181231.xsd#FairValueOfFinancialInstrumentsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/FairValueOfFinancialInstrumentsTables" xlink:href="gdot-20181231.xsd#FairValueOfFinancialInstrumentsTables" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/GoodwillAndIntangibleAssets" xlink:href="gdot-20181231.xsd#GoodwillAndIntangibleAssets" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/GoodwillAndIntangibleAssetsGoodwillAndIntangibleAssetsSummaryDetails" xlink:href="gdot-20181231.xsd#GoodwillAndIntangibleAssetsGoodwillAndIntangibleAssetsSummaryDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/GoodwillAndIntangibleAssetsGoodwillRollforwardDetails" xlink:href="gdot-20181231.xsd#GoodwillAndIntangibleAssetsGoodwillRollforwardDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/GoodwillAndIntangibleAssetsIntangibleAssetsFutureAmortizationExpenseDetails" xlink:href="gdot-20181231.xsd#GoodwillAndIntangibleAssetsIntangibleAssetsFutureAmortizationExpenseDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/GoodwillAndIntangibleAssetsIntangibleAssetsSummaryDetails" xlink:href="gdot-20181231.xsd#GoodwillAndIntangibleAssetsIntangibleAssetsSummaryDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/GoodwillAndIntangibleAssetsTables" xlink:href="gdot-20181231.xsd#GoodwillAndIntangibleAssetsTables" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/IncomeTaxes" xlink:href="gdot-20181231.xsd#IncomeTaxes" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/IncomeTaxesEffectiveTaxRateReconciliationDetails" xlink:href="gdot-20181231.xsd#IncomeTaxesEffectiveTaxRateReconciliationDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/IncomeTaxesNarrativeDetails" xlink:href="gdot-20181231.xsd#IncomeTaxesNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/IncomeTaxesRollforwardOfUnrecognizedTaxBenefitsDetails" xlink:href="gdot-20181231.xsd#IncomeTaxesRollforwardOfUnrecognizedTaxBenefitsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails" xlink:href="gdot-20181231.xsd#IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/IncomeTaxesScheduleOfIncomeTaxesDetails" xlink:href="gdot-20181231.xsd#IncomeTaxesScheduleOfIncomeTaxesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/IncomeTaxesTables" xlink:href="gdot-20181231.xsd#IncomeTaxesTables" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/InvestmentSecurities" xlink:href="gdot-20181231.xsd#InvestmentSecurities" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/InvestmentSecuritiesContinuousUnrealizedLossDetails" xlink:href="gdot-20181231.xsd#InvestmentSecuritiesContinuousUnrealizedLossDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/InvestmentSecuritiesGrossGainsAndLossesDetails" xlink:href="gdot-20181231.xsd#InvestmentSecuritiesGrossGainsAndLossesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/InvestmentSecuritiesMaturitiesDetails" xlink:href="gdot-20181231.xsd#InvestmentSecuritiesMaturitiesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/InvestmentSecuritiesTables" xlink:href="gdot-20181231.xsd#InvestmentSecuritiesTables" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/LoansToBankCustomers" xlink:href="gdot-20181231.xsd#LoansToBankCustomers" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/LoansToBankCustomersAllowanceForLoanLossesDetails" xlink:href="gdot-20181231.xsd#LoansToBankCustomersAllowanceForLoanLossesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/LoansToBankCustomersCreditQualityIndicatorsDetails" xlink:href="gdot-20181231.xsd#LoansToBankCustomersCreditQualityIndicatorsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/LoansToBankCustomersLoanSummaryDetails" xlink:href="gdot-20181231.xsd#LoansToBankCustomersLoanSummaryDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/LoansToBankCustomersNonperformingLoansDetails" xlink:href="gdot-20181231.xsd#LoansToBankCustomersNonperformingLoansDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/LoansToBankCustomersTables" xlink:href="gdot-20181231.xsd#LoansToBankCustomersTables" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/LoansToBankCustomersTroubledDebtRestructuringsDetails" xlink:href="gdot-20181231.xsd#LoansToBankCustomersTroubledDebtRestructuringsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/NotePayable" xlink:href="gdot-20181231.xsd#NotePayable" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/NotePayableNarrativeDetails" xlink:href="gdot-20181231.xsd#NotePayableNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/NotePayableOutstandingDetails" xlink:href="gdot-20181231.xsd#NotePayableOutstandingDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/NotePayableTables" xlink:href="gdot-20181231.xsd#NotePayableTables" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/Organization" xlink:href="gdot-20181231.xsd#Organization" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/OrganizationDetails" xlink:href="gdot-20181231.xsd#OrganizationDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/PropertyAndEquipment" xlink:href="gdot-20181231.xsd#PropertyAndEquipment" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/PropertyAndEquipmentNarrativeDetails" xlink:href="gdot-20181231.xsd#PropertyAndEquipmentNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/PropertyAndEquipmentPropertyAndEquipmentScheduleDetails" xlink:href="gdot-20181231.xsd#PropertyAndEquipmentPropertyAndEquipmentScheduleDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/PropertyAndEquipmentTables" xlink:href="gdot-20181231.xsd#PropertyAndEquipmentTables" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/RegulatoryRequirements" xlink:href="gdot-20181231.xsd#RegulatoryRequirements" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/RegulatoryRequirementsDetails" xlink:href="gdot-20181231.xsd#RegulatoryRequirementsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/RegulatoryRequirementsTables" xlink:href="gdot-20181231.xsd#RegulatoryRequirementsTables" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/RevenuesNarrativeDetails" xlink:href="gdot-20181231.xsd#RevenuesNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/RevenuesRevenues" xlink:href="gdot-20181231.xsd#RevenuesRevenues" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/RevenuesScheduleOfDisaggregationOfRevenueDetails" xlink:href="gdot-20181231.xsd#RevenuesScheduleOfDisaggregationOfRevenueDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/RevenuesTables" xlink:href="gdot-20181231.xsd#RevenuesTables" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/SegmentInformation" xlink:href="gdot-20181231.xsd#SegmentInformation" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/SegmentInformationDetails" xlink:href="gdot-20181231.xsd#SegmentInformationDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/SegmentInformationTables" xlink:href="gdot-20181231.xsd#SegmentInformationTables" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/SelectedUnauditedQuarterlyFinancialInformation" xlink:href="gdot-20181231.xsd#SelectedUnauditedQuarterlyFinancialInformation" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/SelectedUnauditedQuarterlyFinancialInformationDetails" xlink:href="gdot-20181231.xsd#SelectedUnauditedQuarterlyFinancialInformationDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/SelectedUnauditedQuarterlyFinancialInformationTables" xlink:href="gdot-20181231.xsd#SelectedUnauditedQuarterlyFinancialInformationTables" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/SignificantCustomerConcentration" xlink:href="gdot-20181231.xsd#SignificantCustomerConcentration" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/SignificantCustomerConcentrationDetails" xlink:href="gdot-20181231.xsd#SignificantCustomerConcentrationDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/SignificantCustomerConcentrationTables" xlink:href="gdot-20181231.xsd#SignificantCustomerConcentrationTables" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/StockholdersEquity" xlink:href="gdot-20181231.xsd#StockholdersEquity" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/StockholdersEquityNarrativeDetails" xlink:href="gdot-20181231.xsd#StockholdersEquityNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/StockholdersEquityTables" xlink:href="gdot-20181231.xsd#StockholdersEquityTables" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/StockholdersEquityTreasuryStockDetails" xlink:href="gdot-20181231.xsd#StockholdersEquityTreasuryStockDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/SummaryOfSignificantAccountingPolicies" xlink:href="gdot-20181231.xsd#SummaryOfSignificantAccountingPolicies" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/SummaryOfSignificantAccountingPoliciesEstimatedUsefulLivesDetails" xlink:href="gdot-20181231.xsd#SummaryOfSignificantAccountingPoliciesEstimatedUsefulLivesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails" xlink:href="gdot-20181231.xsd#SummaryOfSignificantAccountingPoliciesNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/SummaryOfSignificantAccountingPoliciesPolicies" xlink:href="gdot-20181231.xsd#SummaryOfSignificantAccountingPoliciesPolicies" xlink:type="simple" />
  <link:roleRef roleURI="http://mygreendot.com/role/SummaryOfSignificantAccountingPoliciesTables" xlink:href="gdot-20181231.xsd#SummaryOfSignificantAccountingPoliciesTables" xlink:type="simple" />
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all" xlink:type="simple" />
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default" xlink:type="simple" />
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain" xlink:type="simple" />
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member" xlink:type="simple" />
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension" xlink:type="simple" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/AccountsReceivable" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/AccountsReceivableAccountsReceivableDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccountsNotesAndLoansReceivableLineItems" xlink:label="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_93C021A5FB635F32B8BFE3A023F4DC2F" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable" xlink:label="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_7D16C4B2DD2707E6F0A9E3A023F26FD0" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_93C021A5FB635F32B8BFE3A023F4DC2F" xlink:to="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_7D16C4B2DD2707E6F0A9E3A023F26FD0" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis" xlink:label="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_0F5EE92F7AB987843D4DE3A023F23DAF" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_7D16C4B2DD2707E6F0A9E3A023F26FD0" xlink:to="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_0F5EE92F7AB987843D4DE3A023F23DAF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ReceivableTypeDomain" xlink:label="loc_us-gaap_ReceivableTypeDomain_0B2016E44833E18C574BE3A023F228CF_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_0F5EE92F7AB987843D4DE3A023F23DAF" xlink:to="loc_us-gaap_ReceivableTypeDomain_0B2016E44833E18C574BE3A023F228CF_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ReceivableTypeDomain" xlink:label="loc_us-gaap_ReceivableTypeDomain_0B2016E44833E18C574BE3A023F228CF" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_0F5EE92F7AB987843D4DE3A023F23DAF" xlink:to="loc_us-gaap_ReceivableTypeDomain_0B2016E44833E18C574BE3A023F228CF" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_OverdrawnAccountBalancesDueFromCardholdersMember" xlink:label="loc_gdot_OverdrawnAccountBalancesDueFromCardholdersMember_09D0BFA0A052C4DA3C8CE3A023F350BF" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReceivableTypeDomain_0B2016E44833E18C574BE3A023F228CF" xlink:to="loc_gdot_OverdrawnAccountBalancesDueFromCardholdersMember_09D0BFA0A052C4DA3C8CE3A023F350BF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TradeAccountsReceivableMember" xlink:label="loc_us-gaap_TradeAccountsReceivableMember_DA2B977C6905CFD6EFBCE3A023F3BF47" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReceivableTypeDomain_0B2016E44833E18C574BE3A023F228CF" xlink:to="loc_us-gaap_TradeAccountsReceivableMember_DA2B977C6905CFD6EFBCE3A023F3BF47" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_ReceivablesDueFromCardIssuingBanksMember" xlink:label="loc_gdot_ReceivablesDueFromCardIssuingBanksMember_D57A3FF20A29D2A79EFBE3A023F3F997" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReceivableTypeDomain_0B2016E44833E18C574BE3A023F228CF" xlink:to="loc_gdot_ReceivablesDueFromCardIssuingBanksMember_D57A3FF20A29D2A79EFBE3A023F3F997" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_FeeAdvancesMember" xlink:label="loc_gdot_FeeAdvancesMember_EABDE476D867A2C920D8E3A023F3DD65" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReceivableTypeDomain_0B2016E44833E18C574BE3A023F228CF" xlink:to="loc_gdot_FeeAdvancesMember_EABDE476D867A2C920D8E3A023F3DD65" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_OtherReceivablesMember" xlink:label="loc_gdot_OtherReceivablesMember_4D2FF0153FBEF24D40F2E3A023F44680" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReceivableTypeDomain_0B2016E44833E18C574BE3A023F228CF" xlink:to="loc_gdot_OtherReceivablesMember_4D2FF0153FBEF24D40F2E3A023F44680" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccountsReceivableGross" xlink:label="loc_us-gaap_AccountsReceivableGross_B501A5E5B36FF76989EFE3A023F42CC5" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_93C021A5FB635F32B8BFE3A023F4DC2F" xlink:to="loc_us-gaap_AccountsReceivableGross_B501A5E5B36FF76989EFE3A023F42CC5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivable" xlink:label="loc_us-gaap_AllowanceForDoubtfulAccountsReceivable_F8CD7D7B2E4687B228ECE3A023F5F8A3" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_93C021A5FB635F32B8BFE3A023F4DC2F" xlink:to="loc_us-gaap_AllowanceForDoubtfulAccountsReceivable_F8CD7D7B2E4687B228ECE3A023F5F8A3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccountsReceivableNet" xlink:label="loc_us-gaap_AccountsReceivableNet_1D8576BED451C7B2C331E3A023F5F59C" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_93C021A5FB635F32B8BFE3A023F4DC2F" xlink:to="loc_us-gaap_AccountsReceivableNet_1D8576BED451C7B2C331E3A023F5F59C" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://mygreendot.com/role/AccountsReceivableReserveForUncollectibleOverdrawnAccountsActivityDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccountsNotesAndLoansReceivableLineItems" xlink:label="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_AAEDCCF50E770899A369E3A023EA5684" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable" xlink:label="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_44EE43D4A93614D26824E3A023E932FE" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_AAEDCCF50E770899A369E3A023EA5684" xlink:to="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_44EE43D4A93614D26824E3A023E932FE" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis" xlink:label="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_797543970D71F94FD87DE3A023E94B9E" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_44EE43D4A93614D26824E3A023E932FE" xlink:to="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_797543970D71F94FD87DE3A023E94B9E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ReceivableTypeDomain" xlink:label="loc_us-gaap_ReceivableTypeDomain_0F0167098BD54E0A15F6E3A023E9E0C1_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_797543970D71F94FD87DE3A023E94B9E" xlink:to="loc_us-gaap_ReceivableTypeDomain_0F0167098BD54E0A15F6E3A023E9E0C1_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ReceivableTypeDomain" xlink:label="loc_us-gaap_ReceivableTypeDomain_0F0167098BD54E0A15F6E3A023E9E0C1" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_797543970D71F94FD87DE3A023E94B9E" xlink:to="loc_us-gaap_ReceivableTypeDomain_0F0167098BD54E0A15F6E3A023E9E0C1" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_OverdrawnAccountBalancesDueFromCardholdersMember" xlink:label="loc_gdot_OverdrawnAccountBalancesDueFromCardholdersMember_10680F81DA72DA017A28E3A023EA7497" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReceivableTypeDomain_0F0167098BD54E0A15F6E3A023E9E0C1" xlink:to="loc_gdot_OverdrawnAccountBalancesDueFromCardholdersMember_10680F81DA72DA017A28E3A023EA7497" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_MovementInValuationAllowancesAndReservesRollForward" xlink:label="loc_us-gaap_MovementInValuationAllowancesAndReservesRollForward_638E4CFE4CD73F2919C7E3A023EA0C06" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_AAEDCCF50E770899A369E3A023EA5684" xlink:to="loc_us-gaap_MovementInValuationAllowancesAndReservesRollForward_638E4CFE4CD73F2919C7E3A023EA0C06" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivable" xlink:label="loc_us-gaap_AllowanceForDoubtfulAccountsReceivable_E8AA2DD4089EC58A82B1E3A023EB05FC" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MovementInValuationAllowancesAndReservesRollForward_638E4CFE4CD73F2919C7E3A023EA0C06" xlink:to="loc_us-gaap_AllowanceForDoubtfulAccountsReceivable_E8AA2DD4089EC58A82B1E3A023EB05FC" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_ProvisionForDoubtfulAccountsFees" xlink:label="loc_gdot_ProvisionForDoubtfulAccountsFees_225203DB9984333644FBE3A023EB5A1A" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MovementInValuationAllowancesAndReservesRollForward_638E4CFE4CD73F2919C7E3A023EA0C06" xlink:to="loc_gdot_ProvisionForDoubtfulAccountsFees_225203DB9984333644FBE3A023EB5A1A" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_ProvisionForDoubtfulAccountsPurchaseTransactions" xlink:label="loc_gdot_ProvisionForDoubtfulAccountsPurchaseTransactions_DE12E1DAA2A87907E1CAE3A023EBCDE4" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MovementInValuationAllowancesAndReservesRollForward_638E4CFE4CD73F2919C7E3A023EA0C06" xlink:to="loc_gdot_ProvisionForDoubtfulAccountsPurchaseTransactions_DE12E1DAA2A87907E1CAE3A023EBCDE4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivableWriteOffs" xlink:label="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableWriteOffs_84896F6ABB72E87BC68CE3A023EBD666" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MovementInValuationAllowancesAndReservesRollForward_638E4CFE4CD73F2919C7E3A023EA0C06" xlink:to="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableWriteOffs_84896F6ABB72E87BC68CE3A023EBD666" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://mygreendot.com/role/AccountsReceivableTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/BusinessAcquisitions" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/BusinessAcquisitionsAdditionalInformationDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessAcquisitionLineItems" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_649026174A3B15637D7A253E180057D0" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_351B44DE6FD5B376E726253E17F6E806" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_649026174A3B15637D7A253E180057D0" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_351B44DE6FD5B376E726253E17F6E806" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_RangeAxis" xlink:label="loc_srt_RangeAxis_28AD0B766B5D6355284F253E17F660F9" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_351B44DE6FD5B376E726253E17F6E806" xlink:to="loc_srt_RangeAxis_28AD0B766B5D6355284F253E17F660F9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_RangeMember" xlink:label="loc_srt_RangeMember_06D83954746531535385253E17F69461_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_28AD0B766B5D6355284F253E17F660F9" xlink:to="loc_srt_RangeMember_06D83954746531535385253E17F69461_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_RangeMember" xlink:label="loc_srt_RangeMember_06D83954746531535385253E17F69461" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_28AD0B766B5D6355284F253E17F660F9" xlink:to="loc_srt_RangeMember_06D83954746531535385253E17F69461" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_MinimumMember" xlink:label="loc_srt_MinimumMember_58E0EA788B973A70C165253E17F7A416" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_06D83954746531535385253E17F69461" xlink:to="loc_srt_MinimumMember_58E0EA788B973A70C165253E17F7A416" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_MaximumMember" xlink:label="loc_srt_MaximumMember_7C0956F9A80E2940FDAB253E17F7BE29" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_06D83954746531535385253E17F69461" xlink:to="loc_srt_MaximumMember_7C0956F9A80E2940FDAB253E17F7BE29" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_A6EAE6ADB0BA1E341510253E17F78CBD" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_351B44DE6FD5B376E726253E17F6E806" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_A6EAE6ADB0BA1E341510253E17F78CBD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_066E3CCD3E49C0329623253E17F71769_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_A6EAE6ADB0BA1E341510253E17F78CBD" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_066E3CCD3E49C0329623253E17F71769_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_066E3CCD3E49C0329623253E17F71769" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_A6EAE6ADB0BA1E341510253E17F78CBD" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_066E3CCD3E49C0329623253E17F71769" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CustomerRelationshipsMember" xlink:label="loc_us-gaap_CustomerRelationshipsMember_50A831C6C5C5A29270DB253E17F80DD7" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_066E3CCD3E49C0329623253E17F71769" xlink:to="loc_us-gaap_CustomerRelationshipsMember_50A831C6C5C5A29270DB253E17F80DD7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TradeNamesMember" xlink:label="loc_us-gaap_TradeNamesMember_CA600076A6F619987196253E17F8E75D" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_066E3CCD3E49C0329623253E17F71769" xlink:to="loc_us-gaap_TradeNamesMember_CA600076A6F619987196253E17F8E75D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CreditFacilityAxis" xlink:label="loc_us-gaap_CreditFacilityAxis_FFB7B7D0D5989E99CB6D253E17F8F151" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_351B44DE6FD5B376E726253E17F6E806" xlink:to="loc_us-gaap_CreditFacilityAxis_FFB7B7D0D5989E99CB6D253E17F8F151" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CreditFacilityDomain" xlink:label="loc_us-gaap_CreditFacilityDomain_094B3FA68D08A4B958BD253E17F8D3BD_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CreditFacilityAxis_FFB7B7D0D5989E99CB6D253E17F8F151" xlink:to="loc_us-gaap_CreditFacilityDomain_094B3FA68D08A4B958BD253E17F8D3BD_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CreditFacilityDomain" xlink:label="loc_us-gaap_CreditFacilityDomain_094B3FA68D08A4B958BD253E17F8D3BD" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CreditFacilityAxis_FFB7B7D0D5989E99CB6D253E17F8F151" xlink:to="loc_us-gaap_CreditFacilityDomain_094B3FA68D08A4B958BD253E17F8D3BD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SecuredDebtMember" xlink:label="loc_us-gaap_SecuredDebtMember_B5BFCCACC0CB89E16172253E17F96ED0" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_094B3FA68D08A4B958BD253E17F8D3BD" xlink:to="loc_us-gaap_SecuredDebtMember_B5BFCCACC0CB89E16172253E17F96ED0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongtermDebtTypeAxis" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_4AFB3F51B134661B75BC253E17F9DB20" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_351B44DE6FD5B376E726253E17F6E806" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_4AFB3F51B134661B75BC253E17F9DB20" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongtermDebtTypeDomain" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_23D982EEF165146C71F3253E17F9752C_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_4AFB3F51B134661B75BC253E17F9DB20" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_23D982EEF165146C71F3253E17F9752C_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongtermDebtTypeDomain" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_23D982EEF165146C71F3253E17F9752C" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_4AFB3F51B134661B75BC253E17F9DB20" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_23D982EEF165146C71F3253E17F9752C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LineOfCreditMember" xlink:label="loc_us-gaap_LineOfCreditMember_E3C40D0E01BD33985F0D253E17FE97AB" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_23D982EEF165146C71F3253E17F9752C" xlink:to="loc_us-gaap_LineOfCreditMember_E3C40D0E01BD33985F0D253E17FE97AB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SubordinatedDebtMember" xlink:label="loc_us-gaap_SubordinatedDebtMember_7ECF286B674635FCFC51253E17FFC318" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_23D982EEF165146C71F3253E17F9752C" xlink:to="loc_us-gaap_SubordinatedDebtMember_7ECF286B674635FCFC51253E17FFC318" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_BF78B47CF30E566727BD253E17FFD864" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_351B44DE6FD5B376E726253E17F6E806" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_BF78B47CF30E566727BD253E17FFD864" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_0885C3B13ED978840130253E17FFD7AB_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_BF78B47CF30E566727BD253E17FFD864" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_0885C3B13ED978840130253E17FFD7AB_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_0885C3B13ED978840130253E17FFD7AB" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_BF78B47CF30E566727BD253E17FFD864" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_0885C3B13ED978840130253E17FFD7AB" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_UniRushLLCMember" xlink:label="loc_gdot_UniRushLLCMember_B94C021434E5CA60B83A253E17FF6508" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_0885C3B13ED978840130253E17FFD7AB" xlink:to="loc_gdot_UniRushLLCMember_B94C021434E5CA60B83A253E17FF6508" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LineOfCredit" xlink:label="loc_us-gaap_LineOfCredit_D92310C0CA653C7E61B5253E1800E794" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_649026174A3B15637D7A253E180057D0" xlink:to="loc_us-gaap_LineOfCredit_D92310C0CA653C7E61B5253E1800E794" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebt" xlink:label="loc_us-gaap_LongTermDebt_C592626B62B4BEDFAEA2253E1800347C" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_649026174A3B15637D7A253E180057D0" xlink:to="loc_us-gaap_LongTermDebt_C592626B62B4BEDFAEA2253E1800347C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessCombinationConsiderationTransferredAbstract" xlink:label="loc_us-gaap_BusinessCombinationConsiderationTransferredAbstract_8149E284BCD37E675132253E1800E930" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_649026174A3B15637D7A253E180057D0" xlink:to="loc_us-gaap_BusinessCombinationConsiderationTransferredAbstract_8149E284BCD37E675132253E1800E930" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsToAcquireBusinessesGross" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesGross_97DD8976E24CDD7BC827253E1800F6B1" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationConsiderationTransferredAbstract_8149E284BCD37E675132253E1800E930" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesGross_97DD8976E24CDD7BC827253E1800F6B1" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_BusinessCombinationFairValueofContingentConsiderationTransferred" xlink:label="loc_gdot_BusinessCombinationFairValueofContingentConsiderationTransferred_76162ABF8FC73D94C1CA253E1801BDE8" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationConsiderationTransferredAbstract_8149E284BCD37E675132253E1800E930" xlink:to="loc_gdot_BusinessCombinationFairValueofContingentConsiderationTransferred_76162ABF8FC73D94C1CA253E1801BDE8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessCombinationConsiderationTransferred1" xlink:label="loc_us-gaap_BusinessCombinationConsiderationTransferred1_CEA8CA005F08B74669D4253E18018E07" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationConsiderationTransferredAbstract_8149E284BCD37E675132253E1800E930" xlink:to="loc_us-gaap_BusinessCombinationConsiderationTransferred1_CEA8CA005F08B74669D4253E18018E07" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_BusinessCombinationContingentConsiderationEarnoutPayable" xlink:label="loc_gdot_BusinessCombinationContingentConsiderationEarnoutPayable_733FC2DD1C07EA66BFDF253E18016973" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_649026174A3B15637D7A253E180057D0" xlink:to="loc_gdot_BusinessCombinationContingentConsiderationEarnoutPayable_733FC2DD1C07EA66BFDF253E18016973" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_BusinessCombinationContingentConsiderationEarnoutPeriod" xlink:label="loc_gdot_BusinessCombinationContingentConsiderationEarnoutPeriod_A1034204486674B8F7E4253E18015396" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_649026174A3B15637D7A253E180057D0" xlink:to="loc_gdot_BusinessCombinationContingentConsiderationEarnoutPeriod_A1034204486674B8F7E4253E18015396" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAbstract" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAbstract_639D8CA917C82C07315B253E18012C40" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_649026174A3B15637D7A253E180057D0" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAbstract_639D8CA917C82C07315B253E18012C40" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents_51EB690BE55606095BEB253E18022BAB" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAbstract_639D8CA917C82C07315B253E18012C40" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents_51EB690BE55606095BEB253E18022BAB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables_C42FB1C29D67FC7DD2BB253E1802F3A4" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAbstract_639D8CA917C82C07315B253E18012C40" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables_C42FB1C29D67FC7DD2BB253E1802F3A4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets_915F979F6587F8FD32C5253E18020788" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAbstract_639D8CA917C82C07315B253E18012C40" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets_915F979F6587F8FD32C5253E18020788" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment_24D0A69BD4C44CB9CB94253E1802166C" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAbstract_639D8CA917C82C07315B253E18012C40" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment_24D0A69BD4C44CB9CB94253E1802166C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill_1B60EBF837DFE41A6665253E18033DF0" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAbstract_639D8CA917C82C07315B253E18012C40" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill_1B60EBF837DFE41A6665253E18033DF0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_Goodwill" xlink:label="loc_us-gaap_Goodwill_EC228561606F4698F182253E1803662D" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAbstract_639D8CA917C82C07315B253E18012C40" xlink:to="loc_us-gaap_Goodwill_EC228561606F4698F182253E1803662D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_EE044C6939F2A1347EA2253E1803DEB8" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAbstract_639D8CA917C82C07315B253E18012C40" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_EE044C6939F2A1347EA2253E1803DEB8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilitiesAbstract" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilitiesAbstract_30236D808B6B2CFB8EAD253E18034F4F" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_649026174A3B15637D7A253E180057D0" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilitiesAbstract_30236D808B6B2CFB8EAD253E18034F4F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable_3EB7206B49F40B278EFF253E1803625B" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilitiesAbstract_30236D808B6B2CFB8EAD253E18034F4F" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable_3EB7206B49F40B278EFF253E1803625B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther_633C6AB0366E7513B33A253E18032C6D" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilitiesAbstract_30236D808B6B2CFB8EAD253E18034F4F" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther_633C6AB0366E7513B33A253E18032C6D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_EB298A3A3C63D0011D06253E1804D921" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilitiesAbstract_30236D808B6B2CFB8EAD253E18034F4F" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_EB298A3A3C63D0011D06253E1804D921" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_7A0454F301CF98C76345253E1804F4D2" xlink:type="locator" />
    <link:definitionArc order="8" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_649026174A3B15637D7A253E180057D0" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_7A0454F301CF98C76345253E1804F4D2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles_6109E1264C9E3117F397253E1804840D" xlink:type="locator" />
    <link:definitionArc order="9" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_649026174A3B15637D7A253E180057D0" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles_6109E1264C9E3117F397253E1804840D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife" xlink:label="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_A44047CF40628EBBE582253E1804BF07" xlink:type="locator" />
    <link:definitionArc order="10" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_649026174A3B15637D7A253E180057D0" xlink:to="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_A44047CF40628EBBE582253E1804BF07" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://mygreendot.com/role/BusinessAcquisitionsProFormaDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessAcquisitionLineItems" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_D3FA0539E2DE6C0DB639253E17D4EA3D" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_4CE64F10CA36F7A301C0253E17D3C798" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_D3FA0539E2DE6C0DB639253E17D4EA3D" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_4CE64F10CA36F7A301C0253E17D3C798" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_02A4DBD45129DA50FC45253E17D3FAC9" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_4CE64F10CA36F7A301C0253E17D3C798" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_02A4DBD45129DA50FC45253E17D3FAC9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_6D4E4857886BA66DAE98253E17D427C2_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_02A4DBD45129DA50FC45253E17D3FAC9" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_6D4E4857886BA66DAE98253E17D427C2_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_6D4E4857886BA66DAE98253E17D427C2" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_02A4DBD45129DA50FC45253E17D3FAC9" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_6D4E4857886BA66DAE98253E17D427C2" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_UniRushLLCMember" xlink:label="loc_gdot_UniRushLLCMember_5904547487BD69D0A6E7253E17D4528C" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_6D4E4857886BA66DAE98253E17D427C2" xlink:to="loc_gdot_UniRushLLCMember_5904547487BD69D0A6E7253E17D4528C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessAcquisitionsProFormaRevenue" xlink:label="loc_us-gaap_BusinessAcquisitionsProFormaRevenue_92022CA77584A24963BC253E17D52FA2" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_D3FA0539E2DE6C0DB639253E17D4EA3D" xlink:to="loc_us-gaap_BusinessAcquisitionsProFormaRevenue_92022CA77584A24963BC253E17D52FA2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss" xlink:label="loc_us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss_3A159F576B6A1ADD9260253E17D55CD5" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_D3FA0539E2DE6C0DB639253E17D4EA3D" xlink:to="loc_us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss_3A159F576B6A1ADD9260253E17D55CD5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessAcquisitionProFormaEarningsPerShareBasic" xlink:label="loc_us-gaap_BusinessAcquisitionProFormaEarningsPerShareBasic_285CB5B0B84B0981B522253E17D57E87" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_D3FA0539E2DE6C0DB639253E17D4EA3D" xlink:to="loc_us-gaap_BusinessAcquisitionProFormaEarningsPerShareBasic_285CB5B0B84B0981B522253E17D57E87" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessAcquisitionProFormaEarningsPerShareDiluted" xlink:label="loc_us-gaap_BusinessAcquisitionProFormaEarningsPerShareDiluted_F867DE5812424B2EEEE5253E17D5C24E" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_D3FA0539E2DE6C0DB639253E17D4EA3D" xlink:to="loc_us-gaap_BusinessAcquisitionProFormaEarningsPerShareDiluted_F867DE5812424B2EEEE5253E17D5C24E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_WeightedAverageBasicSharesOutstandingProForma" xlink:label="loc_us-gaap_WeightedAverageBasicSharesOutstandingProForma_EE7552A4D94E90BB097D253E17D569F0" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_D3FA0539E2DE6C0DB639253E17D4EA3D" xlink:to="loc_us-gaap_WeightedAverageBasicSharesOutstandingProForma_EE7552A4D94E90BB097D253E17D569F0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProFormaWeightedAverageSharesOutstandingDiluted" xlink:label="loc_us-gaap_ProFormaWeightedAverageSharesOutstandingDiluted_752A655AB552D723BB85253E17D67A33" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_D3FA0539E2DE6C0DB639253E17D4EA3D" xlink:to="loc_us-gaap_ProFormaWeightedAverageSharesOutstandingDiluted_752A655AB552D723BB85253E17D67A33" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://mygreendot.com/role/BusinessCombinationTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/CommitmentsAndContingencies" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/CommitmentsAndContingenciesNarrativeDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LossContingenciesLineItems" xlink:label="loc_us-gaap_LossContingenciesLineItems_439C8108FA2D2986F40027FF940BA78B" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LossContingenciesTable" xlink:label="loc_us-gaap_LossContingenciesTable_79D2B7F934B5DCB56AD227FF9406FC5E" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LossContingenciesLineItems_439C8108FA2D2986F40027FF940BA78B" xlink:to="loc_us-gaap_LossContingenciesTable_79D2B7F934B5DCB56AD227FF9406FC5E" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_B4ABA6A3ABDEF08AB96427FF9407C4DA" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LossContingenciesTable_79D2B7F934B5DCB56AD227FF9406FC5E" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_B4ABA6A3ABDEF08AB96427FF9407C4DA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_CEE0AFF6CB9CB187617227FF94079D95_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_B4ABA6A3ABDEF08AB96427FF9407C4DA" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_CEE0AFF6CB9CB187617227FF94079D95_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_CEE0AFF6CB9CB187617227FF94079D95" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_B4ABA6A3ABDEF08AB96427FF9407C4DA" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_CEE0AFF6CB9CB187617227FF94079D95" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_UniRushLLCMember" xlink:label="loc_gdot_UniRushLLCMember_D791637E4A768E3767A927FF9407E83E" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_CEE0AFF6CB9CB187617227FF94079D95" xlink:to="loc_gdot_UniRushLLCMember_D791637E4A768E3767A927FF9407E83E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BalanceSheetLocationAxis" xlink:label="loc_us-gaap_BalanceSheetLocationAxis_06D9E50EFAD24D2996FE27FF9408D39C" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LossContingenciesTable_79D2B7F934B5DCB56AD227FF9406FC5E" xlink:to="loc_us-gaap_BalanceSheetLocationAxis_06D9E50EFAD24D2996FE27FF9408D39C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BalanceSheetLocationDomain" xlink:label="loc_us-gaap_BalanceSheetLocationDomain_5427AFB7788A110BA9E127FF940824AD_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BalanceSheetLocationAxis_06D9E50EFAD24D2996FE27FF9408D39C" xlink:to="loc_us-gaap_BalanceSheetLocationDomain_5427AFB7788A110BA9E127FF940824AD_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BalanceSheetLocationDomain" xlink:label="loc_us-gaap_BalanceSheetLocationDomain_5427AFB7788A110BA9E127FF940824AD" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BalanceSheetLocationAxis_06D9E50EFAD24D2996FE27FF9408D39C" xlink:to="loc_us-gaap_BalanceSheetLocationDomain_5427AFB7788A110BA9E127FF940824AD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccountsReceivableMember" xlink:label="loc_us-gaap_AccountsReceivableMember_4EAE899D0D4C8C3610B927FF9408F6BD" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_5427AFB7788A110BA9E127FF940824AD" xlink:to="loc_us-gaap_AccountsReceivableMember_4EAE899D0D4C8C3610B927FF9408F6BD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_LitigationCaseAxis" xlink:label="loc_srt_LitigationCaseAxis_890A029D364D6B0DE51E27FF94087C84" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LossContingenciesTable_79D2B7F934B5DCB56AD227FF9406FC5E" xlink:to="loc_srt_LitigationCaseAxis_890A029D364D6B0DE51E27FF94087C84" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_LitigationCaseTypeDomain" xlink:label="loc_srt_LitigationCaseTypeDomain_83A93F21B66A75FFCF4127FF9409344C_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_LitigationCaseAxis_890A029D364D6B0DE51E27FF94087C84" xlink:to="loc_srt_LitigationCaseTypeDomain_83A93F21B66A75FFCF4127FF9409344C_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_LitigationCaseTypeDomain" xlink:label="loc_srt_LitigationCaseTypeDomain_83A93F21B66A75FFCF4127FF9409344C" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_LitigationCaseAxis_890A029D364D6B0DE51E27FF94087C84" xlink:to="loc_srt_LitigationCaseTypeDomain_83A93F21B66A75FFCF4127FF9409344C" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_MigrationofThirdPartyCardProcessorMember" xlink:label="loc_gdot_MigrationofThirdPartyCardProcessorMember_A0E8DA91BE33DFCD2FB627FF9409802C" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_LitigationCaseTypeDomain_83A93F21B66A75FFCF4127FF9409344C" xlink:to="loc_gdot_MigrationofThirdPartyCardProcessorMember_A0E8DA91BE33DFCD2FB627FF9409802C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LitigationStatusAxis" xlink:label="loc_us-gaap_LitigationStatusAxis_CFD02D23D647422DDB1127FF9409A139" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LossContingenciesTable_79D2B7F934B5DCB56AD227FF9406FC5E" xlink:to="loc_us-gaap_LitigationStatusAxis_CFD02D23D647422DDB1127FF9409A139" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LitigationStatusDomain" xlink:label="loc_us-gaap_LitigationStatusDomain_5024CB4514522143679A27FF940974FF_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LitigationStatusAxis_CFD02D23D647422DDB1127FF9409A139" xlink:to="loc_us-gaap_LitigationStatusDomain_5024CB4514522143679A27FF940974FF_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LitigationStatusDomain" xlink:label="loc_us-gaap_LitigationStatusDomain_5024CB4514522143679A27FF940974FF" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LitigationStatusAxis_CFD02D23D647422DDB1127FF9409A139" xlink:to="loc_us-gaap_LitigationStatusDomain_5024CB4514522143679A27FF940974FF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PendingLitigationMember" xlink:label="loc_us-gaap_PendingLitigationMember_080086D20D7FC863DB6927FF940A7D4F" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LitigationStatusDomain_5024CB4514522143679A27FF940974FF" xlink:to="loc_us-gaap_PendingLitigationMember_080086D20D7FC863DB6927FF940A7D4F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SettledLitigationMember" xlink:label="loc_us-gaap_SettledLitigationMember_10096862461DC1A4D6AF27FF940A0F23" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LitigationStatusDomain_5024CB4514522143679A27FF940974FF" xlink:to="loc_us-gaap_SettledLitigationMember_10096862461DC1A4D6AF27FF940A0F23" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LossContingenciesByNatureOfContingencyAxis" xlink:label="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_61DC068123492A3C958827FF940A7B7F" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LossContingenciesTable_79D2B7F934B5DCB56AD227FF9406FC5E" xlink:to="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_61DC068123492A3C958827FF940A7B7F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LossContingencyNatureDomain" xlink:label="loc_us-gaap_LossContingencyNatureDomain_D7B9380488590A513DE927FF940A8F5C_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_61DC068123492A3C958827FF940A7B7F" xlink:to="loc_us-gaap_LossContingencyNatureDomain_D7B9380488590A513DE927FF940A8F5C_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LossContingencyNatureDomain" xlink:label="loc_us-gaap_LossContingencyNatureDomain_D7B9380488590A513DE927FF940A8F5C" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_61DC068123492A3C958827FF940A7B7F" xlink:to="loc_us-gaap_LossContingencyNatureDomain_D7B9380488590A513DE927FF940A8F5C" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_LimitedDisruptioninServiceMember" xlink:label="loc_gdot_LimitedDisruptioninServiceMember_8F5A9D7221C771647E3127FF940B6BB4" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingencyNatureDomain_D7B9380488590A513DE927FF940A8F5C" xlink:to="loc_gdot_LimitedDisruptioninServiceMember_8F5A9D7221C771647E3127FF940B6BB4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LesseeOperatingLeaseTermOfContract" xlink:label="loc_us-gaap_LesseeOperatingLeaseTermOfContract_2E7115047C4A3C3518CC27FF940B8E87" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_439C8108FA2D2986F40027FF940BA78B" xlink:to="loc_us-gaap_LesseeOperatingLeaseTermOfContract_2E7115047C4A3C3518CC27FF940B8E87" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_LesseeLeasingArrangementOperatingLeasesAreaLeased" xlink:label="loc_gdot_LesseeLeasingArrangementOperatingLeasesAreaLeased_C1BB2B63E86C1A3DFDB727FF940BD603" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_439C8108FA2D2986F40027FF940BA78B" xlink:to="loc_gdot_LesseeLeasingArrangementOperatingLeasesAreaLeased_C1BB2B63E86C1A3DFDB727FF940BD603" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLeasesRentExpenseNet" xlink:label="loc_us-gaap_OperatingLeasesRentExpenseNet_99132676EFD912997E6427FF940C57C6" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_439C8108FA2D2986F40027FF940BA78B" xlink:to="loc_us-gaap_OperatingLeasesRentExpenseNet_99132676EFD912997E6427FF940C57C6" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_BusinessCombinationContingentConsiderationEarnoutPayable" xlink:label="loc_gdot_BusinessCombinationContingentConsiderationEarnoutPayable_A132ED8E46EBBAD4989527FF940C19D6" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_439C8108FA2D2986F40027FF940BA78B" xlink:to="loc_gdot_BusinessCombinationContingentConsiderationEarnoutPayable_A132ED8E46EBBAD4989527FF940C19D6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessCombinationContingentConsiderationLiability" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationLiability_01950498AD0D18E166A427FF940C48C1" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_439C8108FA2D2986F40027FF940BA78B" xlink:to="loc_us-gaap_BusinessCombinationContingentConsiderationLiability_01950498AD0D18E166A427FF940C48C1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LossContingencyAccrualProvision" xlink:label="loc_us-gaap_LossContingencyAccrualProvision_4926F28BFFA0C584808E27FF940CD4E3" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_439C8108FA2D2986F40027FF940BA78B" xlink:to="loc_us-gaap_LossContingencyAccrualProvision_4926F28BFFA0C584808E27FF940CD4E3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LitigationSettlementAmountAwardedToOtherParty" xlink:label="loc_us-gaap_LitigationSettlementAmountAwardedToOtherParty_FD78EFA7567D79C8B71D27FF940C0663" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_439C8108FA2D2986F40027FF940BA78B" xlink:to="loc_us-gaap_LitigationSettlementAmountAwardedToOtherParty_FD78EFA7567D79C8B71D27FF940C0663" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LossContingencyNewClaimsFiledNumber" xlink:label="loc_us-gaap_LossContingencyNewClaimsFiledNumber_C5BE6673960CED8796E727FF940C37C8" xlink:type="locator" />
    <link:definitionArc order="8" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_439C8108FA2D2986F40027FF940BA78B" xlink:to="loc_us-gaap_LossContingencyNewClaimsFiledNumber_C5BE6673960CED8796E727FF940C37C8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LossContingencyReceivable" xlink:label="loc_us-gaap_LossContingencyReceivable_1E605F334844FEF99AF327FF940DD753" xlink:type="locator" />
    <link:definitionArc order="9" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_439C8108FA2D2986F40027FF940BA78B" xlink:to="loc_us-gaap_LossContingencyReceivable_1E605F334844FEF99AF327FF940DD753" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://mygreendot.com/role/CommitmentsAndContingenciesPurchaseCommitmentsDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/CommitmentsAndContingenciesTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/ConcentrationsOfCreditRisk" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/ConcentrationsOfCreditRiskDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConcentrationRiskLineItems" xlink:label="loc_us-gaap_ConcentrationRiskLineItems_A33E3E25DBC853093C4127FF941FFB0B" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConcentrationRiskTable" xlink:label="loc_us-gaap_ConcentrationRiskTable_83230671CEEFBBD900D827FF941EC658" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ConcentrationRiskLineItems_A33E3E25DBC853093C4127FF941FFB0B" xlink:to="loc_us-gaap_ConcentrationRiskTable_83230671CEEFBBD900D827FF941EC658" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_EntityByLocationAxis" xlink:label="loc_dei_EntityByLocationAxis_71C822F710DEDF8081D427FF941EF80E" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ConcentrationRiskTable_83230671CEEFBBD900D827FF941EC658" xlink:to="loc_dei_EntityByLocationAxis_71C822F710DEDF8081D427FF941EF80E" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_LocationDomain" xlink:label="loc_dei_LocationDomain_0FC0B8CF02CA8A8056CC27FF941E88E2_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_EntityByLocationAxis_71C822F710DEDF8081D427FF941EF80E" xlink:to="loc_dei_LocationDomain_0FC0B8CF02CA8A8056CC27FF941E88E2_default" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_LocationDomain" xlink:label="loc_dei_LocationDomain_0FC0B8CF02CA8A8056CC27FF941E88E2" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_EntityByLocationAxis_71C822F710DEDF8081D427FF941EF80E" xlink:to="loc_dei_LocationDomain_0FC0B8CF02CA8A8056CC27FF941E88E2" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_UtahMember" xlink:label="loc_gdot_UtahMember_872531117E6FB395224927FF941F364B" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_LocationDomain_0FC0B8CF02CA8A8056CC27FF941E88E2" xlink:to="loc_gdot_UtahMember_872531117E6FB395224927FF941F364B" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_ProvoUtahMember" xlink:label="loc_gdot_ProvoUtahMember_729C40E5AFC816ABC53D27FF941F0DED" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_gdot_UtahMember_872531117E6FB395224927FF941F364B" xlink:to="loc_gdot_ProvoUtahMember_729C40E5AFC816ABC53D27FF941F0DED" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConcentrationRiskPercentage1" xlink:label="loc_us-gaap_ConcentrationRiskPercentage1_22DC59EA8D6053E998F227FF941F50A2" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskLineItems_A33E3E25DBC853093C4127FF941FFB0B" xlink:to="loc_us-gaap_ConcentrationRiskPercentage1_22DC59EA8D6053E998F227FF941F50A2" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://mygreendot.com/role/ConsolidatedBalanceSheets" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/ConsolidatedBalanceSheetsParenthetical" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_ACA1104AA85BB1090677DEB40A6DE55C" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_B2F9682B5901F771E622DEB40A637DE2" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_ACA1104AA85BB1090677DEB40A6DE55C" xlink:to="loc_us-gaap_StatementTable_B2F9682B5901F771E622DEB40A637DE2" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis_23CBB481754B5C2DF5F6DEB40A6C043B" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_B2F9682B5901F771E622DEB40A637DE2" xlink:to="loc_us-gaap_StatementClassOfStockAxis_23CBB481754B5C2DF5F6DEB40A6C043B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_3BE3031DCB81557954B2DEB40A6C1027_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_23CBB481754B5C2DF5F6DEB40A6C043B" xlink:to="loc_us-gaap_ClassOfStockDomain_3BE3031DCB81557954B2DEB40A6C1027_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_3BE3031DCB81557954B2DEB40A6C1027" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_23CBB481754B5C2DF5F6DEB40A6C043B" xlink:to="loc_us-gaap_ClassOfStockDomain_3BE3031DCB81557954B2DEB40A6C1027" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonClassAMember" xlink:label="loc_us-gaap_CommonClassAMember_3FDBF677CA7D7F6F56B0DEB40F1724F2" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_3BE3031DCB81557954B2DEB40A6C1027" xlink:to="loc_us-gaap_CommonClassAMember_3FDBF677CA7D7F6F56B0DEB40F1724F2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinancingReceivableAllowanceForCreditLosses" xlink:label="loc_us-gaap_FinancingReceivableAllowanceForCreditLosses_EDF3306367906429F236DEAC1CFA769E" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_ACA1104AA85BB1090677DEB40A6DE55C" xlink:to="loc_us-gaap_FinancingReceivableAllowanceForCreditLosses_EDF3306367906429F236DEAC1CFA769E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonStockParOrStatedValuePerShare" xlink:label="loc_us-gaap_CommonStockParOrStatedValuePerShare_50683D345DDE66FAA021DEAC1CFB8E91" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_ACA1104AA85BB1090677DEB40A6DE55C" xlink:to="loc_us-gaap_CommonStockParOrStatedValuePerShare_50683D345DDE66FAA021DEAC1CFB8E91" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonStockSharesAuthorized" xlink:label="loc_us-gaap_CommonStockSharesAuthorized_488E4B356501A61649ECDEAC1CFBB0CD" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_ACA1104AA85BB1090677DEB40A6DE55C" xlink:to="loc_us-gaap_CommonStockSharesAuthorized_488E4B356501A61649ECDEAC1CFBB0CD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonStockSharesIssued" xlink:label="loc_us-gaap_CommonStockSharesIssued_1FA962AC583759463ADFDEAC1CFCAA75" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_ACA1104AA85BB1090677DEB40A6DE55C" xlink:to="loc_us-gaap_CommonStockSharesIssued_1FA962AC583759463ADFDEAC1CFCAA75" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonStockSharesOutstanding" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_19ED31AF53EDE88EADCBDEAC1CFC03AF" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_ACA1104AA85BB1090677DEB40A6DE55C" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_19ED31AF53EDE88EADCBDEAC1CFC03AF" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://mygreendot.com/role/ConsolidatedStatementsOfCashFlows" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/ConsolidatedStatementsOfChangesInStockholdersEquity" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_9F06A0FE817C40D271C2E826A250F428" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_707F6D78684D3881C2C1E826A24DA610" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_9F06A0FE817C40D271C2E826A250F428" xlink:to="loc_us-gaap_StatementTable_707F6D78684D3881C2C1E826A24DA610" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_CF6B78378D60A0992EE6E826A24D8715" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_707F6D78684D3881C2C1E826A24DA610" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_CF6B78378D60A0992EE6E826A24D8715" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_7834E95A0E8448C0EA59E826A24E4A68_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_CF6B78378D60A0992EE6E826A24D8715" xlink:to="loc_us-gaap_EquityComponentDomain_7834E95A0E8448C0EA59E826A24E4A68_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_7834E95A0E8448C0EA59E826A24E4A68" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_CF6B78378D60A0992EE6E826A24D8715" xlink:to="loc_us-gaap_EquityComponentDomain_7834E95A0E8448C0EA59E826A24E4A68" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PreferredStockMember" xlink:label="loc_us-gaap_PreferredStockMember_4242D68BE8A632DAB3D0E826A24EEE28" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_7834E95A0E8448C0EA59E826A24E4A68" xlink:to="loc_us-gaap_PreferredStockMember_4242D68BE8A632DAB3D0E826A24EEE28" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonStockMember" xlink:label="loc_us-gaap_CommonStockMember_5648183009D0A2C0E659E826A24E2277" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_7834E95A0E8448C0EA59E826A24E4A68" xlink:to="loc_us-gaap_CommonStockMember_5648183009D0A2C0E659E826A24E2277" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AdditionalPaidInCapitalMember" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_A1A1B4B9C897B05BC4B8E826A24E9C46" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_7834E95A0E8448C0EA59E826A24E4A68" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_A1A1B4B9C897B05BC4B8E826A24E9C46" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RetainedEarningsMember" xlink:label="loc_us-gaap_RetainedEarningsMember_3BE1944E1632461B77B9E826A24F8614" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_7834E95A0E8448C0EA59E826A24E4A68" xlink:to="loc_us-gaap_RetainedEarningsMember_3BE1944E1632461B77B9E826A24F8614" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_9209C24B8C881606C8C0E826A24F4256" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_7834E95A0E8448C0EA59E826A24E4A68" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_9209C24B8C881606C8C0E826A24F4256" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis_56687C27878EA6CDF7EBE826A24F64EA" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_707F6D78684D3881C2C1E826A24DA610" xlink:to="loc_us-gaap_StatementClassOfStockAxis_56687C27878EA6CDF7EBE826A24F64EA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_3DDD6EA9DD97EDF7D026E826A24F64DA_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_56687C27878EA6CDF7EBE826A24F64EA" xlink:to="loc_us-gaap_ClassOfStockDomain_3DDD6EA9DD97EDF7D026E826A24F64DA_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_3DDD6EA9DD97EDF7D026E826A24F64DA" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_56687C27878EA6CDF7EBE826A24F64EA" xlink:to="loc_us-gaap_ClassOfStockDomain_3DDD6EA9DD97EDF7D026E826A24F64DA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConvertiblePreferredStockMember" xlink:label="loc_us-gaap_ConvertiblePreferredStockMember_45CF2A9C999DA7886C73E826A25080F8" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_3DDD6EA9DD97EDF7D026E826A24F64DA" xlink:to="loc_us-gaap_ConvertiblePreferredStockMember_45CF2A9C999DA7886C73E826A25080F8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonClassAMember" xlink:label="loc_us-gaap_CommonClassAMember_B54F79F1CA4907F81E5CE826A250F332" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_3DDD6EA9DD97EDF7D026E826A24F64DA" xlink:to="loc_us-gaap_CommonClassAMember_B54F79F1CA4907F81E5CE826A250F332" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A699BAEBAA56D98BE977E826A25038CD" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_9F06A0FE817C40D271C2E826A250F428" xlink:to="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A699BAEBAA56D98BE977E826A25038CD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SharesOutstanding" xlink:label="loc_us-gaap_SharesOutstanding_8EF59C7BE9B1794B5E1BE826A2512F34" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A699BAEBAA56D98BE977E826A25038CD" xlink:to="loc_us-gaap_SharesOutstanding_8EF59C7BE9B1794B5E1BE826A2512F34" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaap_StockholdersEquity_FE4C7A1061E68C5751FFE826A2516EE9" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A699BAEBAA56D98BE977E826A25038CD" xlink:to="loc_us-gaap_StockholdersEquity_FE4C7A1061E68C5751FFE826A2516EE9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_D6C8CC09F219A0C55D69E826A2510E60" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A699BAEBAA56D98BE977E826A25038CD" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_D6C8CC09F219A0C55D69E826A2510E60" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_091CFB021ACEB7E106D7E826A251DF72" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A699BAEBAA56D98BE977E826A25038CD" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_091CFB021ACEB7E106D7E826A251DF72" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_3F0CA06A0F8E561A3485E826A252C1C4" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A699BAEBAA56D98BE977E826A25038CD" xlink:to="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_3F0CA06A0F8E561A3485E826A252C1C4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConversionOfStockSharesConverted1" xlink:label="loc_us-gaap_ConversionOfStockSharesConverted1_521A55782ED2356D2D31E826A25221C9" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A699BAEBAA56D98BE977E826A25038CD" xlink:to="loc_us-gaap_ConversionOfStockSharesConverted1_521A55782ED2356D2D31E826A25221C9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConversionOfStockAmountConverted1" xlink:label="loc_us-gaap_ConversionOfStockAmountConverted1_3E18E7CD9AE9FE20AE1AE826A252E0CC" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A699BAEBAA56D98BE977E826A25038CD" xlink:to="loc_us-gaap_ConversionOfStockAmountConverted1_3E18E7CD9AE9FE20AE1AE826A252E0CC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TreasuryStockSharesAcquired" xlink:label="loc_us-gaap_TreasuryStockSharesAcquired_5C54AB743C423C89374CE826A2528554" xlink:type="locator" />
    <link:definitionArc order="8" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A699BAEBAA56D98BE977E826A25038CD" xlink:to="loc_us-gaap_TreasuryStockSharesAcquired_5C54AB743C423C89374CE826A2528554" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TreasuryStockValueAcquiredCostMethod" xlink:label="loc_us-gaap_TreasuryStockValueAcquiredCostMethod_D50C78615697AED1ACEDE826A2522113" xlink:type="locator" />
    <link:definitionArc order="9" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A699BAEBAA56D98BE977E826A25038CD" xlink:to="loc_us-gaap_TreasuryStockValueAcquiredCostMethod_D50C78615697AED1ACEDE826A2522113" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_315DD617477EC8D6E5A9E826A2528C35" xlink:type="locator" />
    <link:definitionArc order="10" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A699BAEBAA56D98BE977E826A25038CD" xlink:to="loc_us-gaap_NetIncomeLoss_315DD617477EC8D6E5A9E826A2528C35" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_6555D66CEC5D61584C1FE826A253384E" xlink:type="locator" />
    <link:definitionArc order="11" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A699BAEBAA56D98BE977E826A25038CD" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_6555D66CEC5D61584C1FE826A253384E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption" xlink:label="loc_us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption_4BFA45A83627131C2962E826A2530F3F" xlink:type="locator" />
    <link:definitionArc order="12" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_A699BAEBAA56D98BE977E826A25038CD" xlink:to="loc_us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption_4BFA45A83627131C2962E826A2530F3F" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://mygreendot.com/role/ConsolidatedStatementsOfComprehensiveIncome" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/ConsolidatedStatementsOfOperations" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_EDC039A287ADBAAAFEBCDEBC74160AA6" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_4D58EA7B1767501E0900DEBC73FA5FC0" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_EDC039A287ADBAAAFEBCDEBC74160AA6" xlink:to="loc_us-gaap_StatementTable_4D58EA7B1767501E0900DEBC73FA5FC0" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_ProductOrServiceAxis" xlink:label="loc_srt_ProductOrServiceAxis_9C631FEF18781A6ADE07DEBC7414BB81" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_4D58EA7B1767501E0900DEBC73FA5FC0" xlink:to="loc_srt_ProductOrServiceAxis_9C631FEF18781A6ADE07DEBC7414BB81" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_ProductsAndServicesDomain" xlink:label="loc_srt_ProductsAndServicesDomain_06D790F688EFF03DD2FFDEBC741458F1_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ProductOrServiceAxis_9C631FEF18781A6ADE07DEBC7414BB81" xlink:to="loc_srt_ProductsAndServicesDomain_06D790F688EFF03DD2FFDEBC741458F1_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_ProductsAndServicesDomain" xlink:label="loc_srt_ProductsAndServicesDomain_06D790F688EFF03DD2FFDEBC741458F1" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ProductOrServiceAxis_9C631FEF18781A6ADE07DEBC7414BB81" xlink:to="loc_srt_ProductsAndServicesDomain_06D790F688EFF03DD2FFDEBC741458F1" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_CardRevenuesAndOtherFeesMember" xlink:label="loc_gdot_CardRevenuesAndOtherFeesMember_C8310884FAFB41BBE92EDEBC7415556B" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_06D790F688EFF03DD2FFDEBC741458F1" xlink:to="loc_gdot_CardRevenuesAndOtherFeesMember_C8310884FAFB41BBE92EDEBC7415556B" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_ProcessingAndSettlementServiceMember" xlink:label="loc_gdot_ProcessingAndSettlementServiceMember_871B716FA45F4DA96786DEBC74152150" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_06D790F688EFF03DD2FFDEBC741458F1" xlink:to="loc_gdot_ProcessingAndSettlementServiceMember_871B716FA45F4DA96786DEBC74152150" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_InterchangeRevenuesMember" xlink:label="loc_gdot_InterchangeRevenuesMember_9198BC5DA9E63D6F9247DEBC7415735F" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_06D790F688EFF03DD2FFDEBC741458F1" xlink:to="loc_gdot_InterchangeRevenuesMember_9198BC5DA9E63D6F9247DEBC7415735F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RevenuesAbstract" xlink:label="loc_us-gaap_RevenuesAbstract_B884A39A724551A1B075DEAC1CE66020" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_EDC039A287ADBAAAFEBCDEBC74160AA6" xlink:to="loc_us-gaap_RevenuesAbstract_B884A39A724551A1B075DEAC1CE66020" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_Revenues" xlink:label="loc_us-gaap_Revenues_B8D65918BFC6E98E3992DEAC1CE728BF" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenuesAbstract_B884A39A724551A1B075DEAC1CE66020" xlink:to="loc_us-gaap_Revenues_B8D65918BFC6E98E3992DEAC1CE728BF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingExpensesAbstract" xlink:label="loc_us-gaap_OperatingExpensesAbstract_9F8336A9973D6E80FD5ADEAC1CE7DA4F" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_EDC039A287ADBAAAFEBCDEBC74160AA6" xlink:to="loc_us-gaap_OperatingExpensesAbstract_9F8336A9973D6E80FD5ADEAC1CE7DA4F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SellingAndMarketingExpense" xlink:label="loc_us-gaap_SellingAndMarketingExpense_51936DCDB6F573E0DFAADEAC1CE71397" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_9F8336A9973D6E80FD5ADEAC1CE7DA4F" xlink:to="loc_us-gaap_SellingAndMarketingExpense_51936DCDB6F573E0DFAADEAC1CE71397" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LaborAndRelatedExpense" xlink:label="loc_us-gaap_LaborAndRelatedExpense_C5935C4BB17200ACEAE5DEAC1CE82396" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_9F8336A9973D6E80FD5ADEAC1CE7DA4F" xlink:to="loc_us-gaap_LaborAndRelatedExpense_C5935C4BB17200ACEAE5DEAC1CE82396" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommunicationsAndInformationTechnology" xlink:label="loc_us-gaap_CommunicationsAndInformationTechnology_676CAABF0C84231F926FDEAC1CE8F95F" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_9F8336A9973D6E80FD5ADEAC1CE7DA4F" xlink:to="loc_us-gaap_CommunicationsAndInformationTechnology_676CAABF0C84231F926FDEAC1CE8F95F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherGeneralAndAdministrativeExpense" xlink:label="loc_us-gaap_OtherGeneralAndAdministrativeExpense_6A339EEA840AB0242746DEAC1CE9C87F" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_9F8336A9973D6E80FD5ADEAC1CE7DA4F" xlink:to="loc_us-gaap_OtherGeneralAndAdministrativeExpense_6A339EEA840AB0242746DEAC1CE9C87F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingExpenses" xlink:label="loc_us-gaap_OperatingExpenses_0B0FD5B553A2FE3EC604DEAC1CE9962A" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_9F8336A9973D6E80FD5ADEAC1CE7DA4F" xlink:to="loc_us-gaap_OperatingExpenses_0B0FD5B553A2FE3EC604DEAC1CE9962A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="loc_us-gaap_OperatingIncomeLoss_4526DDA3E7FDC403E936DEAC1CE97555" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_EDC039A287ADBAAAFEBCDEBC74160AA6" xlink:to="loc_us-gaap_OperatingIncomeLoss_4526DDA3E7FDC403E936DEAC1CE97555" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InterestIncomeOther" xlink:label="loc_us-gaap_InterestIncomeOther_C8994538D94A5EA07806DEAC1CE9E02D" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_EDC039A287ADBAAAFEBCDEBC74160AA6" xlink:to="loc_us-gaap_InterestIncomeOther_C8994538D94A5EA07806DEAC1CE9E02D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InterestExpenseOther" xlink:label="loc_us-gaap_InterestExpenseOther_1060D16D8604EE887C30DEAC1CEA850E" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_EDC039A287ADBAAAFEBCDEBC74160AA6" xlink:to="loc_us-gaap_InterestExpenseOther_1060D16D8604EE887C30DEAC1CEA850E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic_D58E0BE3F77290D69BC7DEAC1CEA3101" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_EDC039A287ADBAAAFEBCDEBC74160AA6" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic_D58E0BE3F77290D69BC7DEAC1CEA3101" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_F1013D04272C4A894D43DEAC1CEBD1BC" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_EDC039A287ADBAAAFEBCDEBC74160AA6" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_F1013D04272C4A894D43DEAC1CEBD1BC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_61DEDCBF5F66C218DB42DEAC1CEB9D5D" xlink:type="locator" />
    <link:definitionArc order="8" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_EDC039A287ADBAAAFEBCDEBC74160AA6" xlink:to="loc_us-gaap_NetIncomeLoss_61DEDCBF5F66C218DB42DEAC1CEB9D5D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PreferredStockDividendsAndOtherAdjustments" xlink:label="loc_us-gaap_PreferredStockDividendsAndOtherAdjustments_3EAF3D0268CC6102CF5FDEAC1CEC14C0" xlink:type="locator" />
    <link:definitionArc order="9" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_EDC039A287ADBAAAFEBCDEBC74160AA6" xlink:to="loc_us-gaap_PreferredStockDividendsAndOtherAdjustments_3EAF3D0268CC6102CF5FDEAC1CEC14C0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_FD644252A2D5DB2D9228DEAC1CEDA19F" xlink:type="locator" />
    <link:definitionArc order="10" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_EDC039A287ADBAAAFEBCDEBC74160AA6" xlink:to="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_FD644252A2D5DB2D9228DEAC1CEDA19F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EarningsPerShareAbstract" xlink:label="loc_us-gaap_EarningsPerShareAbstract_588E40D93552E32F0635DEAC1CEDEC9C" xlink:type="locator" />
    <link:definitionArc order="11" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_EDC039A287ADBAAAFEBCDEBC74160AA6" xlink:to="loc_us-gaap_EarningsPerShareAbstract_588E40D93552E32F0635DEAC1CEDEC9C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EarningsPerShareBasicUndistributed" xlink:label="loc_us-gaap_EarningsPerShareBasicUndistributed_EFFF013069AE42365875DEAC1CEDF015" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareAbstract_588E40D93552E32F0635DEAC1CEDEC9C" xlink:to="loc_us-gaap_EarningsPerShareBasicUndistributed_EFFF013069AE42365875DEAC1CEDF015" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EarningsPerShareDilutedUndistributed" xlink:label="loc_us-gaap_EarningsPerShareDilutedUndistributed_2FABDF004404036E058EDEAC1CEE8441" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareAbstract_588E40D93552E32F0635DEAC1CEDEC9C" xlink:to="loc_us-gaap_EarningsPerShareDilutedUndistributed_2FABDF004404036E058EDEAC1CEE8441" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_WeightedAverageNumberOfSharesIssuedAndOutstandingAbstract" xlink:label="loc_gdot_WeightedAverageNumberOfSharesIssuedAndOutstandingAbstract_09AB8515A28AEB4027F1DEAC1CEE3727" xlink:type="locator" />
    <link:definitionArc order="12" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_EDC039A287ADBAAAFEBCDEBC74160AA6" xlink:to="loc_gdot_WeightedAverageNumberOfSharesIssuedAndOutstandingAbstract_09AB8515A28AEB4027F1DEAC1CEE3727" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_2EA99F54C6F8E74CD660DEAC1CEFD459" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_gdot_WeightedAverageNumberOfSharesIssuedAndOutstandingAbstract_09AB8515A28AEB4027F1DEAC1CEE3727" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_2EA99F54C6F8E74CD660DEAC1CEFD459" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_E2154A586354FEB672D0DEAC1CF02452" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_gdot_WeightedAverageNumberOfSharesIssuedAndOutstandingAbstract_09AB8515A28AEB4027F1DEAC1CEE3727" xlink:to="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_E2154A586354FEB672D0DEAC1CF02452" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://mygreendot.com/role/DefinedContributionPlan" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/DefinedContributionPlanDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/Deposits" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/DepositsContractualMaturitiesDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/DepositsSummaryOfDepositsDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/DepositsTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/DocumentAndEntityInformation" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/EarningsPerCommonShare" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/EarningsPerCommonShareAntidilutiveSharesDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_788B9905B7A85C43570D27FF944D5D9B" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable" xlink:label="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_1A7345A9C83B1E4A66EC27FF944B6AC3" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_788B9905B7A85C43570D27FF944D5D9B" xlink:to="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_1A7345A9C83B1E4A66EC27FF944B6AC3" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_213702341E51C9FB280A27FF944BAD66" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_1A7345A9C83B1E4A66EC27FF944B6AC3" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_213702341E51C9FB280A27FF944BAD66" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AntidilutiveSecuritiesNameDomain" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_33B532858EBE12165B0327FF944C3A22_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_213702341E51C9FB280A27FF944BAD66" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_33B532858EBE12165B0327FF944C3A22_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AntidilutiveSecuritiesNameDomain" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_33B532858EBE12165B0327FF944C3A22" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_213702341E51C9FB280A27FF944BAD66" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_33B532858EBE12165B0327FF944C3A22" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EmployeeStockOptionMember" xlink:label="loc_us-gaap_EmployeeStockOptionMember_F9F70910BCCC362E333427FF944C3170" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_33B532858EBE12165B0327FF944C3A22" xlink:to="loc_us-gaap_EmployeeStockOptionMember_F9F70910BCCC362E333427FF944C3170" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RestrictedStockUnitsRSUMember" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_F2BE34F32F5F7D2E251A27FF944D262E" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_33B532858EBE12165B0327FF944C3A22" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_F2BE34F32F5F7D2E251A27FF944D262E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PerformanceSharesMember" xlink:label="loc_us-gaap_PerformanceSharesMember_814619DAA5310B7DD4EB27FF944DFA19" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_33B532858EBE12165B0327FF944C3A22" xlink:to="loc_us-gaap_PerformanceSharesMember_814619DAA5310B7DD4EB27FF944DFA19" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConvertiblePreferredStockMember" xlink:label="loc_us-gaap_ConvertiblePreferredStockMember_63611E1DF4271C3E4BBB27FF944D7D30" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_33B532858EBE12165B0327FF944C3A22" xlink:to="loc_us-gaap_ConvertiblePreferredStockMember_63611E1DF4271C3E4BBB27FF944D7D30" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_329D285F3841E264D57B27FF944D3909" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_788B9905B7A85C43570D27FF944D5D9B" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_329D285F3841E264D57B27FF944D3909" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://mygreendot.com/role/EarningsPerCommonShareBasicEarningsPerShareDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EarningsPerShareBasicLineItems" xlink:label="loc_us-gaap_EarningsPerShareBasicLineItems_A7B16BB9B7950A885E9C27FF945F189D" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfEarningsPerShareBasicByCommonClassTable" xlink:label="loc_us-gaap_ScheduleOfEarningsPerShareBasicByCommonClassTable_518201B22EA6FC9A720627FF945E602B" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_EarningsPerShareBasicLineItems_A7B16BB9B7950A885E9C27FF945F189D" xlink:to="loc_us-gaap_ScheduleOfEarningsPerShareBasicByCommonClassTable_518201B22EA6FC9A720627FF945E602B" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_ACE2994E9033DBACBB0627FF945E5F81" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEarningsPerShareBasicByCommonClassTable_518201B22EA6FC9A720627FF945E602B" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_ACE2994E9033DBACBB0627FF945E5F81" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_BBCD2A50FC02D664A76427FF945F68E4_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_ACE2994E9033DBACBB0627FF945E5F81" xlink:to="loc_us-gaap_EquityComponentDomain_BBCD2A50FC02D664A76427FF945F68E4_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_BBCD2A50FC02D664A76427FF945F68E4" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_ACE2994E9033DBACBB0627FF945E5F81" xlink:to="loc_us-gaap_EquityComponentDomain_BBCD2A50FC02D664A76427FF945F68E4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RetainedEarningsMember" xlink:label="loc_us-gaap_RetainedEarningsMember_C3624D59CF7EE1C287D927FF945F8B98" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_BBCD2A50FC02D664A76427FF945F68E4" xlink:to="loc_us-gaap_RetainedEarningsMember_C3624D59CF7EE1C287D927FF945F8B98" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_2772CA235A6EA346E00727FF945FE528" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareBasicLineItems_A7B16BB9B7950A885E9C27FF945F189D" xlink:to="loc_us-gaap_NetIncomeLoss_2772CA235A6EA346E00727FF945FE528" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PreferredStockDividendsAndOtherAdjustments" xlink:label="loc_us-gaap_PreferredStockDividendsAndOtherAdjustments_255DCCDCBCE5F1D1BF3127FF94606445" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareBasicLineItems_A7B16BB9B7950A885E9C27FF945F189D" xlink:to="loc_us-gaap_PreferredStockDividendsAndOtherAdjustments_255DCCDCBCE5F1D1BF3127FF94606445" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_UndistributedEarnings" xlink:label="loc_us-gaap_UndistributedEarnings_B05312A430746940F3D027FF946067BB" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareBasicLineItems_A7B16BB9B7950A885E9C27FF945F189D" xlink:to="loc_us-gaap_UndistributedEarnings_B05312A430746940F3D027FF946067BB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_04DC9653BFE8AD19E1B627FF9460F972" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareBasicLineItems_A7B16BB9B7950A885E9C27FF945F189D" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_04DC9653BFE8AD19E1B627FF9460F972" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EarningsPerShareBasicUndistributed" xlink:label="loc_us-gaap_EarningsPerShareBasicUndistributed_915BD54B229F8BC1DB9D27FF94600EA5" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareBasicLineItems_A7B16BB9B7950A885E9C27FF945F189D" xlink:to="loc_us-gaap_EarningsPerShareBasicUndistributed_915BD54B229F8BC1DB9D27FF94600EA5" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://mygreendot.com/role/EarningsPerCommonShareDilutedEarningsPerShareDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EarningsPerShareBasicLineItems" xlink:label="loc_us-gaap_EarningsPerShareBasicLineItems_2DF17D2271020097B33627FF9456B547" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfEarningsPerShareDilutedByCommonClassTable" xlink:label="loc_us-gaap_ScheduleOfEarningsPerShareDilutedByCommonClassTable_FA699EADB8CD991A546927FF9454E5F2" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_EarningsPerShareBasicLineItems_2DF17D2271020097B33627FF9456B547" xlink:to="loc_us-gaap_ScheduleOfEarningsPerShareDilutedByCommonClassTable_FA699EADB8CD991A546927FF9454E5F2" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaap_AwardTypeAxis_5FFFDEEA91ECDE2AE67227FF9454F001" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEarningsPerShareDilutedByCommonClassTable_FA699EADB8CD991A546927FF9454E5F2" xlink:to="loc_us-gaap_AwardTypeAxis_5FFFDEEA91ECDE2AE67227FF9454F001" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_21E3657A8FA40AA9D1B327FF94544B77_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_5FFFDEEA91ECDE2AE67227FF9454F001" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_21E3657A8FA40AA9D1B327FF94544B77_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_21E3657A8FA40AA9D1B327FF94544B77" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_5FFFDEEA91ECDE2AE67227FF9454F001" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_21E3657A8FA40AA9D1B327FF94544B77" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EmployeeStockOptionMember" xlink:label="loc_us-gaap_EmployeeStockOptionMember_B282F9A59991D4C70D0227FF94554217" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_21E3657A8FA40AA9D1B327FF94544B77" xlink:to="loc_us-gaap_EmployeeStockOptionMember_B282F9A59991D4C70D0227FF94554217" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RestrictedStockUnitsRSUMember" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_5C2B6CB683E38F1EE33027FF9455E463" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_21E3657A8FA40AA9D1B327FF94544B77" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_5C2B6CB683E38F1EE33027FF9455E463" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PerformanceSharesMember" xlink:label="loc_us-gaap_PerformanceSharesMember_2B44232B25B7C838ABA227FF9455A534" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_21E3657A8FA40AA9D1B327FF94544B77" xlink:to="loc_us-gaap_PerformanceSharesMember_2B44232B25B7C838ABA227FF9455A534" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EmployeeStockMember" xlink:label="loc_us-gaap_EmployeeStockMember_85DCC2E8FA6FA5CE943727FF9455F2FE" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_21E3657A8FA40AA9D1B327FF94544B77" xlink:to="loc_us-gaap_EmployeeStockMember_85DCC2E8FA6FA5CE943727FF9455F2FE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_UndistributedEarnings" xlink:label="loc_us-gaap_UndistributedEarnings_1AB01E7EFEFA75AE5B5127FF9456F6C8" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareBasicLineItems_2DF17D2271020097B33627FF9456B547" xlink:to="loc_us-gaap_UndistributedEarnings_1AB01E7EFEFA75AE5B5127FF9456F6C8" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_ReAllocatedEarnings" xlink:label="loc_gdot_ReAllocatedEarnings_01F70C596C53F9EDB46F27FF9456EDA6" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareBasicLineItems_2DF17D2271020097B33627FF9456B547" xlink:to="loc_gdot_ReAllocatedEarnings_01F70C596C53F9EDB46F27FF9456EDA6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_UndistributedEarningsDiluted" xlink:label="loc_us-gaap_UndistributedEarningsDiluted_048BBF9E489D6B284DA527FF945755F3" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareBasicLineItems_2DF17D2271020097B33627FF9456B547" xlink:to="loc_us-gaap_UndistributedEarningsDiluted_048BBF9E489D6B284DA527FF945755F3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_2DDDA5897BF3B417DC8A27FF94579518" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareBasicLineItems_2DF17D2271020097B33627FF9456B547" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_2DDDA5897BF3B417DC8A27FF94579518" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements" xlink:label="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_EBA56886396F2D42110D27FF94577392" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareBasicLineItems_2DF17D2271020097B33627FF9456B547" xlink:to="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_EBA56886396F2D42110D27FF94577392" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_8B1B1C3A46661DDADDEE27FF945737C4" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareBasicLineItems_2DF17D2271020097B33627FF9456B547" xlink:to="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_8B1B1C3A46661DDADDEE27FF945737C4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EarningsPerShareDilutedUndistributed" xlink:label="loc_us-gaap_EarningsPerShareDilutedUndistributed_8057C504A1F4B1BF0B4927FF94573EAD" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareBasicLineItems_2DF17D2271020097B33627FF9456B547" xlink:to="loc_us-gaap_EarningsPerShareDilutedUndistributed_8057C504A1F4B1BF0B4927FF94573EAD" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://mygreendot.com/role/EarningsPerCommonShareTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/EmployeeStockBasedCompensation" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/EmployeeStockBasedCompensationEquityGrantedDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_14F89E0D78D407537BCAE8269EF21450" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_9D9AAC872496C70DE853E8269EF03BF4" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_14F89E0D78D407537BCAE8269EF21450" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_9D9AAC872496C70DE853E8269EF03BF4" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PlanNameAxis" xlink:label="loc_us-gaap_PlanNameAxis_BC9C1AE13DCD299019D5E8269EF041DD" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_9D9AAC872496C70DE853E8269EF03BF4" xlink:to="loc_us-gaap_PlanNameAxis_BC9C1AE13DCD299019D5E8269EF041DD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PlanNameDomain" xlink:label="loc_us-gaap_PlanNameDomain_A36A91ECEBDAD4397B40E8269EF096AE_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PlanNameAxis_BC9C1AE13DCD299019D5E8269EF041DD" xlink:to="loc_us-gaap_PlanNameDomain_A36A91ECEBDAD4397B40E8269EF096AE_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PlanNameDomain" xlink:label="loc_us-gaap_PlanNameDomain_A36A91ECEBDAD4397B40E8269EF096AE" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PlanNameAxis_BC9C1AE13DCD299019D5E8269EF041DD" xlink:to="loc_us-gaap_PlanNameDomain_A36A91ECEBDAD4397B40E8269EF096AE" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_A2010EquityIncentivePlanMember" xlink:label="loc_gdot_A2010EquityIncentivePlanMember_C426B927C7C5BADAA55DE8269EF01FBF" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PlanNameDomain_A36A91ECEBDAD4397B40E8269EF096AE" xlink:to="loc_gdot_A2010EquityIncentivePlanMember_C426B927C7C5BADAA55DE8269EF01FBF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaap_AwardTypeAxis_290C0402012015426653E8269EF1D786" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_9D9AAC872496C70DE853E8269EF03BF4" xlink:to="loc_us-gaap_AwardTypeAxis_290C0402012015426653E8269EF1D786" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_22CD59BAC002A106FAC4E8269EF1AE28_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_290C0402012015426653E8269EF1D786" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_22CD59BAC002A106FAC4E8269EF1AE28_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_22CD59BAC002A106FAC4E8269EF1AE28" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_290C0402012015426653E8269EF1D786" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_22CD59BAC002A106FAC4E8269EF1AE28" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PerformanceSharesMember" xlink:label="loc_us-gaap_PerformanceSharesMember_7E5571A98ED8C713252DE8269EF1DA68" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_22CD59BAC002A106FAC4E8269EF1AE28" xlink:to="loc_us-gaap_PerformanceSharesMember_7E5571A98ED8C713252DE8269EF1DA68" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RestrictedStockUnitsRSUMember" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_7A6E7A29F76E3777E266E8269EF2E6EF" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_22CD59BAC002A106FAC4E8269EF1AE28" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_7A6E7A29F76E3777E266E8269EF2E6EF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_39B78A9DA28A222173B9E8269EF26250" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_14F89E0D78D407537BCAE8269EF21450" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_39B78A9DA28A222173B9E8269EF26250" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted_226C3716AEB307173425E8269EF2F5AD" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_14F89E0D78D407537BCAE8269EF21450" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted_226C3716AEB307173425E8269EF2F5AD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_5BC4D22BA74849551DCDE8269EF3EE8A" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_14F89E0D78D407537BCAE8269EF21450" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_5BC4D22BA74849551DCDE8269EF3EE8A" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://mygreendot.com/role/EmployeeStockBasedCompensationExpenseDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/EmployeeStockBasedCompensationNarrativeDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_F90A47AC87687925A07727FF94BCECB9" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_9C815523E6DC43001FA127FF94B8297F" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_F90A47AC87687925A07727FF94BCECB9" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_9C815523E6DC43001FA127FF94B8297F" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaap_AwardTypeAxis_9CDB88EA9E5A618510F427FF94B909C9" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_9C815523E6DC43001FA127FF94B8297F" xlink:to="loc_us-gaap_AwardTypeAxis_9CDB88EA9E5A618510F427FF94B909C9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_D1C43BFCD1956048B82F27FF94B95D92_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_9CDB88EA9E5A618510F427FF94B909C9" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_D1C43BFCD1956048B82F27FF94B95D92_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_D1C43BFCD1956048B82F27FF94B95D92" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_9CDB88EA9E5A618510F427FF94B909C9" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_D1C43BFCD1956048B82F27FF94B95D92" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RestrictedStockMember" xlink:label="loc_us-gaap_RestrictedStockMember_91EDC1476853225493B327FF94B90E0D" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_D1C43BFCD1956048B82F27FF94B95D92" xlink:to="loc_us-gaap_RestrictedStockMember_91EDC1476853225493B327FF94B90E0D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PerformanceSharesMember" xlink:label="loc_us-gaap_PerformanceSharesMember_A80C84334B438E790C1627FF94B902A9" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_D1C43BFCD1956048B82F27FF94B95D92" xlink:to="loc_us-gaap_PerformanceSharesMember_A80C84334B438E790C1627FF94B902A9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PlanNameAxis" xlink:label="loc_us-gaap_PlanNameAxis_019377369358DF797F5727FF94BA4E46" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_9C815523E6DC43001FA127FF94B8297F" xlink:to="loc_us-gaap_PlanNameAxis_019377369358DF797F5727FF94BA4E46" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PlanNameDomain" xlink:label="loc_us-gaap_PlanNameDomain_7C0EE29B578383C3F07227FF94BAB2C1_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PlanNameAxis_019377369358DF797F5727FF94BA4E46" xlink:to="loc_us-gaap_PlanNameDomain_7C0EE29B578383C3F07227FF94BAB2C1_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PlanNameDomain" xlink:label="loc_us-gaap_PlanNameDomain_7C0EE29B578383C3F07227FF94BAB2C1" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PlanNameAxis_019377369358DF797F5727FF94BA4E46" xlink:to="loc_us-gaap_PlanNameDomain_7C0EE29B578383C3F07227FF94BAB2C1" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_A2010EquityIncentivePlanMember" xlink:label="loc_gdot_A2010EquityIncentivePlanMember_788DA93C8852C9B6048C27FF94BA3584" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PlanNameDomain_7C0EE29B578383C3F07227FF94BAB2C1" xlink:to="loc_gdot_A2010EquityIncentivePlanMember_788DA93C8852C9B6048C27FF94BA3584" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_A2010EquityIncentivePlanExecutiveEmployeesMember" xlink:label="loc_gdot_A2010EquityIncentivePlanExecutiveEmployeesMember_3C49964B6A5C9B2EEC3127FF94BB87DC" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PlanNameDomain_7C0EE29B578383C3F07227FF94BAB2C1" xlink:to="loc_gdot_A2010EquityIncentivePlanExecutiveEmployeesMember_3C49964B6A5C9B2EEC3127FF94BB87DC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_RangeAxis" xlink:label="loc_srt_RangeAxis_A35E7880E57A16820D0A27FF94BB03AF" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_9C815523E6DC43001FA127FF94B8297F" xlink:to="loc_srt_RangeAxis_A35E7880E57A16820D0A27FF94BB03AF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_RangeMember" xlink:label="loc_srt_RangeMember_41DA8A9F1744DBFFEAD527FF94BB4D8C_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_A35E7880E57A16820D0A27FF94BB03AF" xlink:to="loc_srt_RangeMember_41DA8A9F1744DBFFEAD527FF94BB4D8C_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_RangeMember" xlink:label="loc_srt_RangeMember_41DA8A9F1744DBFFEAD527FF94BB4D8C" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_A35E7880E57A16820D0A27FF94BB03AF" xlink:to="loc_srt_RangeMember_41DA8A9F1744DBFFEAD527FF94BB4D8C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_MinimumMember" xlink:label="loc_srt_MinimumMember_3A99B2D5A18E1E04238027FF94BBC7D8" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_41DA8A9F1744DBFFEAD527FF94BB4D8C" xlink:to="loc_srt_MinimumMember_3A99B2D5A18E1E04238027FF94BBC7D8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_MaximumMember" xlink:label="loc_srt_MaximumMember_CE6C6937EC2B7837F6B427FF94BC896B" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_41DA8A9F1744DBFFEAD527FF94BB4D8C" xlink:to="loc_srt_MaximumMember_CE6C6937EC2B7837F6B427FF94BC896B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_994F7637C1BD5192236D27FF94BCF01F" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_F90A47AC87687925A07727FF94BCECB9" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_994F7637C1BD5192236D27FF94BCF01F" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_ShareBasedCompensationAwardExpirationPeriod" xlink:label="loc_gdot_ShareBasedCompensationAwardExpirationPeriod_89F1691257E14432FF0627FF94BC883E" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_F90A47AC87687925A07727FF94BCECB9" xlink:to="loc_gdot_ShareBasedCompensationAwardExpirationPeriod_89F1691257E14432FF0627FF94BC883E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized_62699DF78A4428C25DB127FF94BC22C7" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_F90A47AC87687925A07727FF94BCECB9" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized_62699DF78A4428C25DB127FF94BC22C7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_86763D71B4A2BE9DC1B227FF94BC1E02" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_F90A47AC87687925A07727FF94BCECB9" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_86763D71B4A2BE9DC1B227FF94BC1E02" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue_7E2A67CA8712DBB75BEF27FF94BDA167" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_F90A47AC87687925A07727FF94BCECB9" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue_7E2A67CA8712DBB75BEF27FF94BDA167" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_SharebasedCompensationArrangementSharesIssuedTargetSharePercentage" xlink:label="loc_gdot_SharebasedCompensationArrangementSharesIssuedTargetSharePercentage_2E4B3DC625F715CC68F027FF94BD57E2" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_F90A47AC87687925A07727FF94BCECB9" xlink:to="loc_gdot_SharebasedCompensationArrangementSharesIssuedTargetSharePercentage_2E4B3DC625F715CC68F027FF94BD57E2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_D70280A910362642AA3D27FF94BD1217" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_F90A47AC87687925A07727FF94BCECB9" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_D70280A910362642AA3D27FF94BD1217" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue_A3E203504956408B80A027FF94BD2B99" xlink:type="locator" />
    <link:definitionArc order="8" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_F90A47AC87687925A07727FF94BCECB9" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue_A3E203504956408B80A027FF94BD2B99" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions_DD115C688A08D0D3358327FF94BD014D" xlink:type="locator" />
    <link:definitionArc order="9" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_F90A47AC87687925A07727FF94BCECB9" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions_DD115C688A08D0D3358327FF94BD014D" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognitionRestrictedStock" xlink:label="loc_gdot_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognitionRestrictedStock_6E7818FB6643123AD3E627FF94BE2DFC" xlink:type="locator" />
    <link:definitionArc order="10" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_F90A47AC87687925A07727FF94BCECB9" xlink:to="loc_gdot_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognitionRestrictedStock_6E7818FB6643123AD3E627FF94BE2DFC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares_2766998ABEB448EA747027FF94BECB10" xlink:type="locator" />
    <link:definitionArc order="11" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_F90A47AC87687925A07727FF94BCECB9" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares_2766998ABEB448EA747027FF94BECB10" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://mygreendot.com/role/EmployeeStockBasedCompensationOptionActivityDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/EmployeeStockBasedCompensationRestrictedAndPerformanceStockUnitsGrantedDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_1F25E26C5DAB5D2F46A1E8269EE51236" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_27045ADDF24D6BBACABBE8269EE3F701" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_1F25E26C5DAB5D2F46A1E8269EE51236" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_27045ADDF24D6BBACABBE8269EE3F701" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaap_AwardTypeAxis_4187D40A0199FAB65849E8269EE3FC41" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_27045ADDF24D6BBACABBE8269EE3F701" xlink:to="loc_us-gaap_AwardTypeAxis_4187D40A0199FAB65849E8269EE3FC41" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_9F855CFDCAAFB513A0CBE8269EE412AF_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_4187D40A0199FAB65849E8269EE3FC41" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_9F855CFDCAAFB513A0CBE8269EE412AF_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_9F855CFDCAAFB513A0CBE8269EE412AF" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_4187D40A0199FAB65849E8269EE3FC41" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_9F855CFDCAAFB513A0CBE8269EE412AF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PerformanceSharesMember" xlink:label="loc_us-gaap_PerformanceSharesMember_D52C1F57EB901DB10A33E8269EE4E40F" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_9F855CFDCAAFB513A0CBE8269EE412AF" xlink:to="loc_us-gaap_PerformanceSharesMember_D52C1F57EB901DB10A33E8269EE4E40F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RestrictedStockUnitsRSUMember" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_37D8A32B61FF6E66BB78E8269EE5F417" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_9F855CFDCAAFB513A0CBE8269EE412AF" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_37D8A32B61FF6E66BB78E8269EE5F417" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_5415FAB3C7FEFC234556E8269EE537AE" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_1F25E26C5DAB5D2F46A1E8269EE51236" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_5415FAB3C7FEFC234556E8269EE537AE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber_16AFBE9F0ABF8B791B53E8269EE61412" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_5415FAB3C7FEFC234556E8269EE537AE" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber_16AFBE9F0ABF8B791B53E8269EE61412" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted_5625D2F2A49461EA9A7EE8269EE63C27" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_5415FAB3C7FEFC234556E8269EE537AE" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted_5625D2F2A49461EA9A7EE8269EE63C27" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercised" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercised_501EE4D9702B2C1B6250E8269EE6B356" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_5415FAB3C7FEFC234556E8269EE537AE" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercised_501EE4D9702B2C1B6250E8269EE6B356" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsForfeituresAndExpirations" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsForfeituresAndExpirations_F60E407CE358763C8702E8269EE6033E" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_5415FAB3C7FEFC234556E8269EE537AE" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsForfeituresAndExpirations_F60E407CE358763C8702E8269EE6033E" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsAdjustmentForCertifiedPerformancePeriods" xlink:label="loc_gdot_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsAdjustmentForCertifiedPerformancePeriods_289C61870AB8A67D9F94E8269EE7E2E4" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_5415FAB3C7FEFC234556E8269EE537AE" xlink:to="loc_gdot_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsAdjustmentForCertifiedPerformancePeriods_289C61870AB8A67D9F94E8269EE7E2E4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_C57958DB4FD2FF046411E8269EE7A04D" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_5415FAB3C7FEFC234556E8269EE537AE" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_C57958DB4FD2FF046411E8269EE7A04D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_6CD75E840720C46DEBDBE8269EE7CB22" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_C57958DB4FD2FF046411E8269EE7A04D" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_6CD75E840720C46DEBDBE8269EE7CB22" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_C5A7D3A08635CB801B94E8269EE85ADB" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_C57958DB4FD2FF046411E8269EE7A04D" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_C5A7D3A08635CB801B94E8269EE85ADB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_74927D9A05D4BC5E2D9EE8269EE8BCD0" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_C57958DB4FD2FF046411E8269EE7A04D" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_74927D9A05D4BC5E2D9EE8269EE8BCD0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_97055EBF66CC24063C0AE8269EE87F97" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_C57958DB4FD2FF046411E8269EE7A04D" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_97055EBF66CC24063C0AE8269EE87F97" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsAdjustmentForCertifiedPerformancePeriodsWeightedAverageGrantDateFairValue" xlink:label="loc_gdot_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsAdjustmentForCertifiedPerformancePeriodsWeightedAverageGrantDateFairValue_A402DA6313341B13DB08E8269EE9E18C" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_C57958DB4FD2FF046411E8269EE7A04D" xlink:to="loc_gdot_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsAdjustmentForCertifiedPerformancePeriodsWeightedAverageGrantDateFairValue_A402DA6313341B13DB08E8269EE9E18C" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://mygreendot.com/role/EmployeeStockBasedCompensationTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_896A091DB79C896AA21DDEAC1A8B5B04" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_FBA042235C2F461E0A76DEAC1A8A0D11" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_896A091DB79C896AA21DDEAC1A8B5B04" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_FBA042235C2F461E0A76DEAC1A8A0D11" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaap_AwardTypeAxis_76401D254D9BE980E55FDEAC1A8A3C4A" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_FBA042235C2F461E0A76DEAC1A8A0D11" xlink:to="loc_us-gaap_AwardTypeAxis_76401D254D9BE980E55FDEAC1A8A3C4A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_7480E771E2766826014ADEAC1A8A58F1_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_76401D254D9BE980E55FDEAC1A8A3C4A" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_7480E771E2766826014ADEAC1A8A58F1_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_7480E771E2766826014ADEAC1A8A58F1" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_76401D254D9BE980E55FDEAC1A8A3C4A" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_7480E771E2766826014ADEAC1A8A58F1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RestrictedStockUnitsRSUMember" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_262FD07726719A6D6F51DEAC1A8AB3FB" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_7480E771E2766826014ADEAC1A8A58F1" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_262FD07726719A6D6F51DEAC1A8AB3FB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PerformanceSharesMember" xlink:label="loc_us-gaap_PerformanceSharesMember_843004EFC230F1341569DEAC1A8B818F" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_7480E771E2766826014ADEAC1A8A58F1" xlink:to="loc_us-gaap_PerformanceSharesMember_843004EFC230F1341569DEAC1A8B818F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValueTableTextBlock" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValueTableTextBlock_839117E1BB16DADE43DCDEAC1A8B3A2A" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_896A091DB79C896AA21DDEAC1A8B5B04" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValueTableTextBlock_839117E1BB16DADE43DCDEAC1A8B3A2A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock_85C51AD40713CB212387DEAC1A8BE00A" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_896A091DB79C896AA21DDEAC1A8B5B04" xlink:to="loc_us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock_85C51AD40713CB212387DEAC1A8BE00A" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://mygreendot.com/role/FairValueMeasurements" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/FairValueMeasurementsContingentConsiderationLiabilityDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems" xlink:label="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_A85E2F6CE043E9CC8F0727FF943186DD" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable" xlink:label="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable_7C55AF33D2EDB68A227527FF9430F690" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_A85E2F6CE043E9CC8F0727FF943186DD" xlink:to="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable_7C55AF33D2EDB68A227527FF9430F690" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueByLiabilityClassAxis" xlink:label="loc_us-gaap_FairValueByLiabilityClassAxis_126323369E4F7183FA6027FF9430C087" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable_7C55AF33D2EDB68A227527FF9430F690" xlink:to="loc_us-gaap_FairValueByLiabilityClassAxis_126323369E4F7183FA6027FF9430C087" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain" xlink:label="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_9FD63BCFF558191DF73327FF94317F96_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByLiabilityClassAxis_126323369E4F7183FA6027FF9430C087" xlink:to="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_9FD63BCFF558191DF73327FF94317F96_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain" xlink:label="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_9FD63BCFF558191DF73327FF94317F96" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByLiabilityClassAxis_126323369E4F7183FA6027FF9430C087" xlink:to="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_9FD63BCFF558191DF73327FF94317F96" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_ContingentConsiderationMember" xlink:label="loc_gdot_ContingentConsiderationMember_1EAE9514527984294C5E27FF9431C1F6" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_9FD63BCFF558191DF73327FF94317F96" xlink:to="loc_gdot_ContingentConsiderationMember_1EAE9514527984294C5E27FF9431C1F6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward" xlink:label="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_9E8C3E25C4E77AE2183327FF9431E97C" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_A85E2F6CE043E9CC8F0727FF943186DD" xlink:to="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_9E8C3E25C4E77AE2183327FF9431E97C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue_7F7C197616AE8A01458627FF94328E0E" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_9E8C3E25C4E77AE2183327FF9431E97C" xlink:to="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue_7F7C197616AE8A01458627FF94328E0E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues_09C43C75BA82D31476D327FF94324192" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_9E8C3E25C4E77AE2183327FF9431E97C" xlink:to="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues_09C43C75BA82D31476D327FF94324192" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsOfMergerRelatedCostsFinancingActivities" xlink:label="loc_us-gaap_PaymentsOfMergerRelatedCostsFinancingActivities_646640C6AD6BD29AF98E27FF94321B7E" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_9E8C3E25C4E77AE2183327FF9431E97C" xlink:to="loc_us-gaap_PaymentsOfMergerRelatedCostsFinancingActivities_646640C6AD6BD29AF98E27FF94321B7E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1_B170AA15C53FE9F8EC7927FF9432B8D3" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_9E8C3E25C4E77AE2183327FF9431E97C" xlink:to="loc_us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1_B170AA15C53FE9F8EC7927FF9432B8D3" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://mygreendot.com/role/FairValueMeasurementsFairValueHierarchyDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_83071C7C8FB352EE105827FF943E9956" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_9EE70B3438EB34D1F3EA27FF943A7627" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_83071C7C8FB352EE105827FF943E9956" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_9EE70B3438EB34D1F3EA27FF943A7627" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_1189D0B4B653E428FA5D27FF943B4B98" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_9EE70B3438EB34D1F3EA27FF943A7627" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_1189D0B4B653E428FA5D27FF943B4B98" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_31EC966FF1E1DA6B3E8B27FF943BCE28_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_1189D0B4B653E428FA5D27FF943B4B98" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_31EC966FF1E1DA6B3E8B27FF943BCE28_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_31EC966FF1E1DA6B3E8B27FF943BCE28" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_1189D0B4B653E428FA5D27FF943B4B98" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_31EC966FF1E1DA6B3E8B27FF943BCE28" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueInputsLevel1Member" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_5D79707B7A2535B6EF0727FF943B97C8" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_31EC966FF1E1DA6B3E8B27FF943BCE28" xlink:to="loc_us-gaap_FairValueInputsLevel1Member_5D79707B7A2535B6EF0727FF943B97C8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueInputsLevel2Member" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_03BFDD43BEBDC10B5CCE27FF943C4885" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_31EC966FF1E1DA6B3E8B27FF943BCE28" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_03BFDD43BEBDC10B5CCE27FF943C4885" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueInputsLevel3Member" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_2EDDA5068B6FE03AC5D127FF943C0200" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_31EC966FF1E1DA6B3E8B27FF943BCE28" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_2EDDA5068B6FE03AC5D127FF943C0200" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinancialInstrumentAxis" xlink:label="loc_us-gaap_FinancialInstrumentAxis_E18F52842A5A9DF7F9A527FF943C1AEF" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_9EE70B3438EB34D1F3EA27FF943A7627" xlink:to="loc_us-gaap_FinancialInstrumentAxis_E18F52842A5A9DF7F9A527FF943C1AEF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_2416F52F220AE58BE42227FF943C50CD_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FinancialInstrumentAxis_E18F52842A5A9DF7F9A527FF943C1AEF" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_2416F52F220AE58BE42227FF943C50CD_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_2416F52F220AE58BE42227FF943C50CD" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FinancialInstrumentAxis_E18F52842A5A9DF7F9A527FF943C1AEF" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_2416F52F220AE58BE42227FF943C50CD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CertificatesOfDepositMember" xlink:label="loc_us-gaap_CertificatesOfDepositMember_36509E273515CF99675927FF943C5263" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_2416F52F220AE58BE42227FF943C50CD" xlink:to="loc_us-gaap_CertificatesOfDepositMember_36509E273515CF99675927FF943C5263" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_USGovernmentAgenciesDebtSecuritiesMember" xlink:label="loc_us-gaap_USGovernmentAgenciesDebtSecuritiesMember_C3ADF78998AB446967C827FF943D9312" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_2416F52F220AE58BE42227FF943C50CD" xlink:to="loc_us-gaap_USGovernmentAgenciesDebtSecuritiesMember_C3ADF78998AB446967C827FF943D9312" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_MortgageBackedSecuritiesMember" xlink:label="loc_us-gaap_MortgageBackedSecuritiesMember_169B7AE41F5DF8E1C33827FF943DD319" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_2416F52F220AE58BE42227FF943C50CD" xlink:to="loc_us-gaap_MortgageBackedSecuritiesMember_169B7AE41F5DF8E1C33827FF943DD319" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_USStatesAndPoliticalSubdivisionsMember" xlink:label="loc_us-gaap_USStatesAndPoliticalSubdivisionsMember_6605E8D8FF846FC41BCC27FF943D4717" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_2416F52F220AE58BE42227FF943C50CD" xlink:to="loc_us-gaap_USStatesAndPoliticalSubdivisionsMember_6605E8D8FF846FC41BCC27FF943D4717" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AssetBackedSecuritiesMember" xlink:label="loc_us-gaap_AssetBackedSecuritiesMember_766332618C0C144B901727FF943DD818" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_2416F52F220AE58BE42227FF943C50CD" xlink:to="loc_us-gaap_AssetBackedSecuritiesMember_766332618C0C144B901727FF943DD818" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CorporateDebtSecuritiesMember" xlink:label="loc_us-gaap_CorporateDebtSecuritiesMember_FAA24602CD9D1E5D32BE27FF943D1AF6" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_2416F52F220AE58BE42227FF943C50CD" xlink:to="loc_us-gaap_CorporateDebtSecuritiesMember_FAA24602CD9D1E5D32BE27FF943D1AF6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_USTreasurySecuritiesMember" xlink:label="loc_us-gaap_USTreasurySecuritiesMember_7AE7B93F231AF443D28A27FF943DB9BE" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_2416F52F220AE58BE42227FF943C50CD" xlink:to="loc_us-gaap_USTreasurySecuritiesMember_7AE7B93F231AF443D28A27FF943DB9BE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtSecurities" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_19BC11676D6D1CEF996227FF943EA297" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_83071C7C8FB352EE105827FF943E9956" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_19BC11676D6D1CEF996227FF943EA297" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BusinessCombinationContingentConsiderationLiability" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationLiability_44E82BF3A97F7FC47D1327FF943EB0AA" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_83071C7C8FB352EE105827FF943E9956" xlink:to="loc_us-gaap_BusinessCombinationContingentConsiderationLiability_44E82BF3A97F7FC47D1327FF943EB0AA" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://mygreendot.com/role/FairValueMeasurementsTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/FairValueOfFinancialInstruments" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/FairValueOfFinancialInstrumentsDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/FairValueOfFinancialInstrumentsTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/GoodwillAndIntangibleAssets" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/GoodwillAndIntangibleAssetsGoodwillAndIntangibleAssetsSummaryDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/GoodwillAndIntangibleAssetsGoodwillRollforwardDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/GoodwillAndIntangibleAssetsIntangibleAssetsFutureAmortizationExpenseDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/GoodwillAndIntangibleAssetsIntangibleAssetsSummaryDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsLineItems" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_0812ACD9609568D9B12EDEAC1B20BADD" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable" xlink:label="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_84A2F6E4B388C4DB7C24DEAC1B1E8BF1" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_0812ACD9609568D9B12EDEAC1B20BADD" xlink:to="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_84A2F6E4B388C4DB7C24DEAC1B1E8BF1" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_6CDD33181188C2486BA4DEAC1B1F7FAD" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_84A2F6E4B388C4DB7C24DEAC1B1E8BF1" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_6CDD33181188C2486BA4DEAC1B1F7FAD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_BC30E52E4D8B287A2E13DEAC1B1FA6F1_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_6CDD33181188C2486BA4DEAC1B1F7FAD" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_BC30E52E4D8B287A2E13DEAC1B1FA6F1_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_BC30E52E4D8B287A2E13DEAC1B1FA6F1" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_6CDD33181188C2486BA4DEAC1B1F7FAD" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_BC30E52E4D8B287A2E13DEAC1B1FA6F1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CustomerRelationshipsMember" xlink:label="loc_us-gaap_CustomerRelationshipsMember_43F6DAF0F49D77E56F20DEAC1B1FF31A" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_BC30E52E4D8B287A2E13DEAC1B1FA6F1" xlink:to="loc_us-gaap_CustomerRelationshipsMember_43F6DAF0F49D77E56F20DEAC1B1FF31A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TradeNamesMember" xlink:label="loc_us-gaap_TradeNamesMember_FF10A8403F80149876C7DEAC1B20AD0B" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_BC30E52E4D8B287A2E13DEAC1B1FA6F1" xlink:to="loc_us-gaap_TradeNamesMember_FF10A8403F80149876C7DEAC1B20AD0B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PatentsMember" xlink:label="loc_us-gaap_PatentsMember_BF7AB6AD9E6D264EDE44DEAC1B20B91A" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_BC30E52E4D8B287A2E13DEAC1B1FA6F1" xlink:to="loc_us-gaap_PatentsMember_BF7AB6AD9E6D264EDE44DEAC1B20B91A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherIntangibleAssetsMember" xlink:label="loc_us-gaap_OtherIntangibleAssetsMember_A0C1C55BCEE6339675A7DEAC1B209892" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_BC30E52E4D8B287A2E13DEAC1B1FA6F1" xlink:to="loc_us-gaap_OtherIntangibleAssetsMember_A0C1C55BCEE6339675A7DEAC1B209892" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsGross" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_21023A336F3258F1F6CCDEAC1B21AF92" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_0812ACD9609568D9B12EDEAC1B20BADD" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_21023A336F3258F1F6CCDEAC1B21AF92" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_BD39540F083B3615896BDEAC1B215ADF" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_0812ACD9609568D9B12EDEAC1B20BADD" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_BD39540F083B3615896BDEAC1B215ADF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNet" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_1D7DD6C18C7F45BA28DADEAC1B223529" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_0812ACD9609568D9B12EDEAC1B20BADD" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsNet_1D7DD6C18C7F45BA28DADEAC1B223529" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetUsefulLife" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_99D61505956019E99473DEAC1B225C7E" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_0812ACD9609568D9B12EDEAC1B20BADD" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_99D61505956019E99473DEAC1B225C7E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AmortizationOfIntangibleAssets" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets_BD6F27B237A6D58D0B5CDEAC1B22B07F" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_0812ACD9609568D9B12EDEAC1B20BADD" xlink:to="loc_us-gaap_AmortizationOfIntangibleAssets_BD6F27B237A6D58D0B5CDEAC1B22B07F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ImpairmentOfIntangibleAssetsFinitelived" xlink:label="loc_us-gaap_ImpairmentOfIntangibleAssetsFinitelived_906EBB8BB49F2E8130BDDEAC1B2159F8" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_0812ACD9609568D9B12EDEAC1B20BADD" xlink:to="loc_us-gaap_ImpairmentOfIntangibleAssetsFinitelived_906EBB8BB49F2E8130BDDEAC1B2159F8" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://mygreendot.com/role/GoodwillAndIntangibleAssetsTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/IncomeTaxes" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/IncomeTaxesEffectiveTaxRateReconciliationDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/IncomeTaxesNarrativeDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLossCarryforwardsLineItems" xlink:label="loc_us-gaap_OperatingLossCarryforwardsLineItems_9AA8980CBB121CF73E0B27FF948E0647" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLossCarryforwardsTable" xlink:label="loc_us-gaap_OperatingLossCarryforwardsTable_964D44216D28276D454E27FF94897DCB" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_9AA8980CBB121CF73E0B27FF948E0647" xlink:to="loc_us-gaap_OperatingLossCarryforwardsTable_964D44216D28276D454E27FF94897DCB" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TaxPeriodAxis" xlink:label="loc_us-gaap_TaxPeriodAxis_1181A7DAF3018498138F27FF948A6172" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_OperatingLossCarryforwardsTable_964D44216D28276D454E27FF94897DCB" xlink:to="loc_us-gaap_TaxPeriodAxis_1181A7DAF3018498138F27FF948A6172" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TaxPeriodDomain" xlink:label="loc_us-gaap_TaxPeriodDomain_9C8E8EDC84B4014A985327FF948A1A82_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_TaxPeriodAxis_1181A7DAF3018498138F27FF948A6172" xlink:to="loc_us-gaap_TaxPeriodDomain_9C8E8EDC84B4014A985327FF948A1A82_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TaxPeriodDomain" xlink:label="loc_us-gaap_TaxPeriodDomain_9C8E8EDC84B4014A985327FF948A1A82" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_TaxPeriodAxis_1181A7DAF3018498138F27FF948A6172" xlink:to="loc_us-gaap_TaxPeriodDomain_9C8E8EDC84B4014A985327FF948A1A82" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LatestTaxYearMember" xlink:label="loc_us-gaap_LatestTaxYearMember_9482F5C2A29567F238ED27FF948AB7E3" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TaxPeriodDomain_9C8E8EDC84B4014A985327FF948A1A82" xlink:to="loc_us-gaap_LatestTaxYearMember_9482F5C2A29567F238ED27FF948AB7E3" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_TaxYear20232027Member" xlink:label="loc_gdot_TaxYear20232027Member_7444538D74140F847CBF27FF948B0FB1" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TaxPeriodDomain_9C8E8EDC84B4014A985327FF948A1A82" xlink:to="loc_gdot_TaxYear20232027Member_7444538D74140F847CBF27FF948B0FB1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxAuthorityNameAxis" xlink:label="loc_us-gaap_IncomeTaxAuthorityNameAxis_723A679CC8C372EA6BCA27FF948B4D1C" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_OperatingLossCarryforwardsTable_964D44216D28276D454E27FF94897DCB" xlink:to="loc_us-gaap_IncomeTaxAuthorityNameAxis_723A679CC8C372EA6BCA27FF948B4D1C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxAuthorityNameDomain" xlink:label="loc_us-gaap_IncomeTaxAuthorityNameDomain_5A1B527443201C39212327FF948B60B1_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeTaxAuthorityNameAxis_723A679CC8C372EA6BCA27FF948B4D1C" xlink:to="loc_us-gaap_IncomeTaxAuthorityNameDomain_5A1B527443201C39212327FF948B60B1_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxAuthorityNameDomain" xlink:label="loc_us-gaap_IncomeTaxAuthorityNameDomain_5A1B527443201C39212327FF948B60B1" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeTaxAuthorityNameAxis_723A679CC8C372EA6BCA27FF948B4D1C" xlink:to="loc_us-gaap_IncomeTaxAuthorityNameDomain_5A1B527443201C39212327FF948B60B1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InternalRevenueServiceIRSMember" xlink:label="loc_us-gaap_InternalRevenueServiceIRSMember_41F01508509FFF2A8EEC27FF948C5676" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxAuthorityNameDomain_5A1B527443201C39212327FF948B60B1" xlink:to="loc_us-gaap_InternalRevenueServiceIRSMember_41F01508509FFF2A8EEC27FF948C5676" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_RangeAxis" xlink:label="loc_srt_RangeAxis_1772FBB043724D0E8FD527FF948CF72D" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_OperatingLossCarryforwardsTable_964D44216D28276D454E27FF94897DCB" xlink:to="loc_srt_RangeAxis_1772FBB043724D0E8FD527FF948CF72D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_RangeMember" xlink:label="loc_srt_RangeMember_A4CAFD8D894C184C7EC227FF948CFF95_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_1772FBB043724D0E8FD527FF948CF72D" xlink:to="loc_srt_RangeMember_A4CAFD8D894C184C7EC227FF948CFF95_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_RangeMember" xlink:label="loc_srt_RangeMember_A4CAFD8D894C184C7EC227FF948CFF95" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_1772FBB043724D0E8FD527FF948CF72D" xlink:to="loc_srt_RangeMember_A4CAFD8D894C184C7EC227FF948CFF95" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_MinimumMember" xlink:label="loc_srt_MinimumMember_7A86111D77D63989FA2427FF948D9816" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_A4CAFD8D894C184C7EC227FF948CFF95" xlink:to="loc_srt_MinimumMember_7A86111D77D63989FA2427FF948D9816" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_MaximumMember" xlink:label="loc_srt_MaximumMember_646F8069FA93580CB71927FF948D2877" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_A4CAFD8D894C184C7EC227FF948CFF95" xlink:to="loc_srt_MaximumMember_646F8069FA93580CB71927FF948D2877" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxAuthorityAxis" xlink:label="loc_us-gaap_IncomeTaxAuthorityAxis_953BC7B0758286BFB31027FF948DEA75" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_OperatingLossCarryforwardsTable_964D44216D28276D454E27FF94897DCB" xlink:to="loc_us-gaap_IncomeTaxAuthorityAxis_953BC7B0758286BFB31027FF948DEA75" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxAuthorityDomain" xlink:label="loc_us-gaap_IncomeTaxAuthorityDomain_FCAFEE51338EFD87C0A227FF948E0BFB_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeTaxAuthorityAxis_953BC7B0758286BFB31027FF948DEA75" xlink:to="loc_us-gaap_IncomeTaxAuthorityDomain_FCAFEE51338EFD87C0A227FF948E0BFB_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxAuthorityDomain" xlink:label="loc_us-gaap_IncomeTaxAuthorityDomain_FCAFEE51338EFD87C0A227FF948E0BFB" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeTaxAuthorityAxis_953BC7B0758286BFB31027FF948DEA75" xlink:to="loc_us-gaap_IncomeTaxAuthorityDomain_FCAFEE51338EFD87C0A227FF948E0BFB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DomesticCountryMember" xlink:label="loc_us-gaap_DomesticCountryMember_7264B2136B1BEA0C8BC727FF948ED856" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxAuthorityDomain_FCAFEE51338EFD87C0A227FF948E0BFB" xlink:to="loc_us-gaap_DomesticCountryMember_7264B2136B1BEA0C8BC727FF948ED856" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StateAndLocalJurisdictionMember" xlink:label="loc_us-gaap_StateAndLocalJurisdictionMember_44BEB56F51BB34C5F14027FF948E0A96" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxAuthorityDomain_FCAFEE51338EFD87C0A227FF948E0BFB" xlink:to="loc_us-gaap_StateAndLocalJurisdictionMember_44BEB56F51BB34C5F14027FF948E0A96" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_TaxCutsAndJobsActOf2017IncomeTaxExpenseBenefit" xlink:label="loc_gdot_TaxCutsAndJobsActOf2017IncomeTaxExpenseBenefit_520D44EEF9F6FF1DEC6F27FF948E3FA5" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_9AA8980CBB121CF73E0B27FF948E0647" xlink:to="loc_gdot_TaxCutsAndJobsActOf2017IncomeTaxExpenseBenefit_520D44EEF9F6FF1DEC6F27FF948E3FA5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate_34B6FA829EE6184500D427FF948FEE82" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_9AA8980CBB121CF73E0B27FF948E0647" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate_34B6FA829EE6184500D427FF948FEE82" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_IncomeTaxExaminationPeriod" xlink:label="loc_gdot_IncomeTaxExaminationPeriod_399CF212A129CA1CB26C27FF948F3F60" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_9AA8980CBB121CF73E0B27FF948E0647" xlink:to="loc_gdot_IncomeTaxExaminationPeriod_399CF212A129CA1CB26C27FF948F3F60" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLossCarryforwards" xlink:label="loc_us-gaap_OperatingLossCarryforwards_9EAE8A298EB655E20A6627FF948F65C9" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_9AA8980CBB121CF73E0B27FF948E0647" xlink:to="loc_us-gaap_OperatingLossCarryforwards_9EAE8A298EB655E20A6627FF948F65C9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate_ED2478105523B7EBEE6527FF948FFE4D" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingLossCarryforwardsLineItems_9AA8980CBB121CF73E0B27FF948E0647" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate_ED2478105523B7EBEE6527FF948FFE4D" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://mygreendot.com/role/IncomeTaxesRollforwardOfUnrecognizedTaxBenefitsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxContingencyLineItems" xlink:label="loc_us-gaap_IncomeTaxContingencyLineItems_63265A0F11313ECEADC120702CF57C79" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxContingencyTable" xlink:label="loc_us-gaap_IncomeTaxContingencyTable_AEA9EDE5E18203537CDB20702CF36607" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_IncomeTaxContingencyLineItems_63265A0F11313ECEADC120702CF57C79" xlink:to="loc_us-gaap_IncomeTaxContingencyTable_AEA9EDE5E18203537CDB20702CF36607" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxAuthorityAxis" xlink:label="loc_us-gaap_IncomeTaxAuthorityAxis_ED3E84031F5F7010B60E20702CF4BB53" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_IncomeTaxContingencyTable_AEA9EDE5E18203537CDB20702CF36607" xlink:to="loc_us-gaap_IncomeTaxAuthorityAxis_ED3E84031F5F7010B60E20702CF4BB53" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxAuthorityDomain" xlink:label="loc_us-gaap_IncomeTaxAuthorityDomain_B4A19AB1DE04C742479020702CF48E99_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeTaxAuthorityAxis_ED3E84031F5F7010B60E20702CF4BB53" xlink:to="loc_us-gaap_IncomeTaxAuthorityDomain_B4A19AB1DE04C742479020702CF48E99_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxAuthorityDomain" xlink:label="loc_us-gaap_IncomeTaxAuthorityDomain_B4A19AB1DE04C742479020702CF48E99" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeTaxAuthorityAxis_ED3E84031F5F7010B60E20702CF4BB53" xlink:to="loc_us-gaap_IncomeTaxAuthorityDomain_B4A19AB1DE04C742479020702CF48E99" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DomesticCountryMember" xlink:label="loc_us-gaap_DomesticCountryMember_F5C4713A78E37FCD2AEA20702CF4FFA5" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxAuthorityDomain_B4A19AB1DE04C742479020702CF48E99" xlink:to="loc_us-gaap_DomesticCountryMember_F5C4713A78E37FCD2AEA20702CF4FFA5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward" xlink:label="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_609042545873F01C807120702CF51C94" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxContingencyLineItems_63265A0F11313ECEADC120702CF57C79" xlink:to="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_609042545873F01C807120702CF51C94" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_UnrecognizedTaxBenefits" xlink:label="loc_us-gaap_UnrecognizedTaxBenefits_3549700E9ACEE4652E0020702CF5FD9D" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_609042545873F01C807120702CF51C94" xlink:to="loc_us-gaap_UnrecognizedTaxBenefits_3549700E9ACEE4652E0020702CF5FD9D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions_9C6F25A338976BCDB45D20702CF68A51" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_609042545873F01C807120702CF51C94" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions_9C6F25A338976BCDB45D20702CF68A51" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions_CEC44EA666A21B1A84B020702CF69E42" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_609042545873F01C807120702CF51C94" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions_CEC44EA666A21B1A84B020702CF69E42" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities_9D957E4ECD07CEAA23C020702CF6EBA1" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_609042545873F01C807120702CF51C94" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities_9D957E4ECD07CEAA23C020702CF6EBA1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations_9AC5B5F61B062C4E0F5020702CF67A21" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward_609042545873F01C807120702CF51C94" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations_9AC5B5F61B062C4E0F5020702CF67A21" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate_011DCAEB99DF59D41D9F20702CF742BF" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxContingencyLineItems_63265A0F11313ECEADC120702CF57C79" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate_011DCAEB99DF59D41D9F20702CF742BF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued_7F7BC6A0B49B0594D54520702CF74CC3" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxContingencyLineItems_63265A0F11313ECEADC120702CF57C79" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued_7F7BC6A0B49B0594D54520702CF74CC3" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://mygreendot.com/role/IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/IncomeTaxesScheduleOfIncomeTaxesDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/IncomeTaxesTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/InvestmentSecurities" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/InvestmentSecuritiesContinuousUnrealizedLossDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems" xlink:label="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_64B0FA04BA8C02226B00280DA1203624" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfAvailableForSaleSecuritiesTable" xlink:label="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesTable_5A545F7CA4025BCC9F03280DA11EED73" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_64B0FA04BA8C02226B00280DA1203624" xlink:to="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesTable_5A545F7CA4025BCC9F03280DA11EED73" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinancialInstrumentAxis" xlink:label="loc_us-gaap_FinancialInstrumentAxis_2A61070FA4CAD24A2248280DA11FBEFE" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesTable_5A545F7CA4025BCC9F03280DA11EED73" xlink:to="loc_us-gaap_FinancialInstrumentAxis_2A61070FA4CAD24A2248280DA11FBEFE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_501B870B156913F8EFAC280DA11FB068_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FinancialInstrumentAxis_2A61070FA4CAD24A2248280DA11FBEFE" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_501B870B156913F8EFAC280DA11FB068_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_501B870B156913F8EFAC280DA11FB068" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FinancialInstrumentAxis_2A61070FA4CAD24A2248280DA11FBEFE" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_501B870B156913F8EFAC280DA11FB068" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_USGovernmentAgenciesDebtSecuritiesMember" xlink:label="loc_us-gaap_USGovernmentAgenciesDebtSecuritiesMember_108159DCD4BD1BD914CD280DA11FCC4E" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_501B870B156913F8EFAC280DA11FB068" xlink:to="loc_us-gaap_USGovernmentAgenciesDebtSecuritiesMember_108159DCD4BD1BD914CD280DA11FCC4E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_USTreasurySecuritiesMember" xlink:label="loc_us-gaap_USTreasurySecuritiesMember_4E3ABBCAFB95FA7923C1280DA11F254B" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_501B870B156913F8EFAC280DA11FB068" xlink:to="loc_us-gaap_USTreasurySecuritiesMember_4E3ABBCAFB95FA7923C1280DA11F254B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_MortgageBackedSecuritiesOtherMember" xlink:label="loc_us-gaap_MortgageBackedSecuritiesOtherMember_A1A1A3E7D3DA22D2B8D7280DA120C1DF" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_501B870B156913F8EFAC280DA11FB068" xlink:to="loc_us-gaap_MortgageBackedSecuritiesOtherMember_A1A1A3E7D3DA22D2B8D7280DA120C1DF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_USStatesAndPoliticalSubdivisionsMember" xlink:label="loc_us-gaap_USStatesAndPoliticalSubdivisionsMember_8AFA32DC1D3D3550BE75280DA120A980" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_501B870B156913F8EFAC280DA11FB068" xlink:to="loc_us-gaap_USStatesAndPoliticalSubdivisionsMember_8AFA32DC1D3D3550BE75280DA120A980" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AssetBackedSecuritiesMember" xlink:label="loc_us-gaap_AssetBackedSecuritiesMember_90E587B4D64441A50EDA280DA120E01E" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_501B870B156913F8EFAC280DA11FB068" xlink:to="loc_us-gaap_AssetBackedSecuritiesMember_90E587B4D64441A50EDA280DA120E01E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValueAbstract" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValueAbstract_54DCD3A3401B2A0FF06A280DA120CD6B" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_64B0FA04BA8C02226B00280DA1203624" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValueAbstract_54DCD3A3401B2A0FF06A280DA120CD6B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months_DED79DDA44EE19FAB8A7280DA121C400" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValueAbstract_54DCD3A3401B2A0FF06A280DA120CD6B" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months_DED79DDA44EE19FAB8A7280DA121C400" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger_6FD7B243DBE69F00B839280DA121D339" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValueAbstract_54DCD3A3401B2A0FF06A280DA120CD6B" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger_6FD7B243DBE69F00B839280DA121D339" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPosition" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPosition_ED46A8F6EF27B4B97773280DA1216BE1" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValueAbstract_54DCD3A3401B2A0FF06A280DA120CD6B" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPosition_ED46A8F6EF27B4B97773280DA1216BE1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLossAbstract" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLossAbstract_A6D8351999381F9471EB280DA121AAFB" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_64B0FA04BA8C02226B00280DA1203624" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLossAbstract_A6D8351999381F9471EB280DA121AAFB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss_D5379C983781AEBCF04F280DA1226EC5" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLossAbstract_A6D8351999381F9471EB280DA121AAFB" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss_D5379C983781AEBCF04F280DA1226EC5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss_863045071B5C4B9F80D9280DA122CA85" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLossAbstract_A6D8351999381F9471EB280DA121AAFB" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss_863045071B5C4B9F80D9280DA122CA85" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss_2CE961982E2BC3F94C65280DA122ADA3" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLossAbstract_A6D8351999381F9471EB280DA121AAFB" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss_2CE961982E2BC3F94C65280DA122ADA3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtSecuritiesTradingRealizedLoss" xlink:label="loc_us-gaap_DebtSecuritiesTradingRealizedLoss_5B78CBC097DD5CA72DC2280DA122B44B" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_64B0FA04BA8C02226B00280DA1203624" xlink:to="loc_us-gaap_DebtSecuritiesTradingRealizedLoss_5B78CBC097DD5CA72DC2280DA122B44B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherThanTemporaryImpairmentLossDebtSecuritiesAvailableForSale" xlink:label="loc_us-gaap_OtherThanTemporaryImpairmentLossDebtSecuritiesAvailableForSale_B4F0558DEFEB7CDE1D4A280DA1224D3C" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_64B0FA04BA8C02226B00280DA1203624" xlink:to="loc_us-gaap_OtherThanTemporaryImpairmentLossDebtSecuritiesAvailableForSale_B4F0558DEFEB7CDE1D4A280DA1224D3C" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://mygreendot.com/role/InvestmentSecuritiesGrossGainsAndLossesDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems" xlink:label="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_5D92B79905299F9414F1DEAC1BD968EB" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfAvailableForSaleSecuritiesTable" xlink:label="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesTable_F53F7A6892B436F32C6FDEAC1BD6850E" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_5D92B79905299F9414F1DEAC1BD968EB" xlink:to="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesTable_F53F7A6892B436F32C6FDEAC1BD6850E" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinancialInstrumentAxis" xlink:label="loc_us-gaap_FinancialInstrumentAxis_5C2D3530DC9908975C98DEAC1BD717E9" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesTable_F53F7A6892B436F32C6FDEAC1BD6850E" xlink:to="loc_us-gaap_FinancialInstrumentAxis_5C2D3530DC9908975C98DEAC1BD717E9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_B1ACFD4E84C762C3AC64DEAC1BD7DAD8_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FinancialInstrumentAxis_5C2D3530DC9908975C98DEAC1BD717E9" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_B1ACFD4E84C762C3AC64DEAC1BD7DAD8_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_B1ACFD4E84C762C3AC64DEAC1BD7DAD8" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FinancialInstrumentAxis_5C2D3530DC9908975C98DEAC1BD717E9" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_B1ACFD4E84C762C3AC64DEAC1BD7DAD8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CertificatesOfDepositMember" xlink:label="loc_us-gaap_CertificatesOfDepositMember_788AAF8FA1BFA8BA7D48DF366FE3A9BF" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_B1ACFD4E84C762C3AC64DEAC1BD7DAD8" xlink:to="loc_us-gaap_CertificatesOfDepositMember_788AAF8FA1BFA8BA7D48DF366FE3A9BF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_USGovernmentAgenciesDebtSecuritiesMember" xlink:label="loc_us-gaap_USGovernmentAgenciesDebtSecuritiesMember_965D8E74E14DB4527827DF36D6BDD442" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_B1ACFD4E84C762C3AC64DEAC1BD7DAD8" xlink:to="loc_us-gaap_USGovernmentAgenciesDebtSecuritiesMember_965D8E74E14DB4527827DF36D6BDD442" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_MortgageBackedSecuritiesOtherMember" xlink:label="loc_us-gaap_MortgageBackedSecuritiesOtherMember_95B7E7074C901145B26CDEAC1BD8FCD8" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_B1ACFD4E84C762C3AC64DEAC1BD7DAD8" xlink:to="loc_us-gaap_MortgageBackedSecuritiesOtherMember_95B7E7074C901145B26CDEAC1BD8FCD8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_USStatesAndPoliticalSubdivisionsMember" xlink:label="loc_us-gaap_USStatesAndPoliticalSubdivisionsMember_B1CA952DA0519D99E3D4DEAC1BD8CDAC" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_B1ACFD4E84C762C3AC64DEAC1BD7DAD8" xlink:to="loc_us-gaap_USStatesAndPoliticalSubdivisionsMember_B1CA952DA0519D99E3D4DEAC1BD8CDAC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AssetBackedSecuritiesMember" xlink:label="loc_us-gaap_AssetBackedSecuritiesMember_E29DBAE1A1B0B180E71DDEAC1BD81A9D" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_B1ACFD4E84C762C3AC64DEAC1BD7DAD8" xlink:to="loc_us-gaap_AssetBackedSecuritiesMember_E29DBAE1A1B0B180E71DDEAC1BD81A9D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CorporateDebtSecuritiesMember" xlink:label="loc_us-gaap_CorporateDebtSecuritiesMember_0E165167AFA45E63E3AEDEAC1BD77169" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_B1ACFD4E84C762C3AC64DEAC1BD7DAD8" xlink:to="loc_us-gaap_CorporateDebtSecuritiesMember_0E165167AFA45E63E3AEDEAC1BD77169" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_USTreasurySecuritiesMember" xlink:label="loc_us-gaap_USTreasurySecuritiesMember_D11C1270703305398C10DEAC1BD8E75D" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_B1ACFD4E84C762C3AC64DEAC1BD7DAD8" xlink:to="loc_us-gaap_USTreasurySecuritiesMember_D11C1270703305398C10DEAC1BD8E75D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_753B1CF8518895360EF8DEAC1BDAB844" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_5D92B79905299F9414F1DEAC1BD968EB" xlink:to="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_753B1CF8518895360EF8DEAC1BDAB844" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax_8F3468DFFB3CB3345AB5DEAC1BDA09A3" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_5D92B79905299F9414F1DEAC1BD968EB" xlink:to="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax_8F3468DFFB3CB3345AB5DEAC1BDA09A3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax_68A90CFABFF37E4FF64EDEAC1BDAF707" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_5D92B79905299F9414F1DEAC1BD968EB" xlink:to="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax_68A90CFABFF37E4FF64EDEAC1BDAF707" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtSecurities" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_60E4188119017CEB4AE3DEAC1BDB9786" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_5D92B79905299F9414F1DEAC1BD968EB" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_60E4188119017CEB4AE3DEAC1BDB9786" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://mygreendot.com/role/InvestmentSecuritiesMaturitiesDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/InvestmentSecuritiesTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/LoansToBankCustomers" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/LoansToBankCustomersAllowanceForLoanLossesDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/LoansToBankCustomersCreditQualityIndicatorsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinancingReceivableRecordedInvestmentLineItems" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentLineItems_38FF8761B7700F19C108DEAC1B75FFA5" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfFinancingReceivableRecordedInvestmentCreditQualityIndicatorTable" xlink:label="loc_us-gaap_ScheduleOfFinancingReceivableRecordedInvestmentCreditQualityIndicatorTable_464526FA84F4097741D1DEAC1B71F576" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentLineItems_38FF8761B7700F19C108DEAC1B75FFA5" xlink:to="loc_us-gaap_ScheduleOfFinancingReceivableRecordedInvestmentCreditQualityIndicatorTable_464526FA84F4097741D1DEAC1B71F576" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinancingReceivablePortfolioSegmentAxis" xlink:label="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_FD10432F01DB94C9DD60DEAC1B72DBCA" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFinancingReceivableRecordedInvestmentCreditQualityIndicatorTable_464526FA84F4097741D1DEAC1B71F576" xlink:to="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_FD10432F01DB94C9DD60DEAC1B72DBCA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinancingReceivablePortfolioSegmentDomain" xlink:label="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_2D9E9F67B57318888F69DEAC1B720D74_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_FD10432F01DB94C9DD60DEAC1B72DBCA" xlink:to="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_2D9E9F67B57318888F69DEAC1B720D74_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinancingReceivablePortfolioSegmentDomain" xlink:label="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_2D9E9F67B57318888F69DEAC1B720D74" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_FD10432F01DB94C9DD60DEAC1B72DBCA" xlink:to="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_2D9E9F67B57318888F69DEAC1B720D74" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ResidentialPortfolioSegmentMember" xlink:label="loc_us-gaap_ResidentialPortfolioSegmentMember_7467197F17E70219A7AEDEAC1B72B770" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_2D9E9F67B57318888F69DEAC1B720D74" xlink:to="loc_us-gaap_ResidentialPortfolioSegmentMember_7467197F17E70219A7AEDEAC1B72B770" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommercialPortfolioSegmentMember" xlink:label="loc_us-gaap_CommercialPortfolioSegmentMember_356972BA6E7DF1F72458DEAC1B736022" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_2D9E9F67B57318888F69DEAC1B720D74" xlink:to="loc_us-gaap_CommercialPortfolioSegmentMember_356972BA6E7DF1F72458DEAC1B736022" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConsumerPortfolioSegmentMember" xlink:label="loc_us-gaap_ConsumerPortfolioSegmentMember_3E522DF4662CA596B365DEAC1B73C88A" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_2D9E9F67B57318888F69DEAC1B720D74" xlink:to="loc_us-gaap_ConsumerPortfolioSegmentMember_3E522DF4662CA596B365DEAC1B73C88A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CreditCardReceivablesMember" xlink:label="loc_us-gaap_CreditCardReceivablesMember_A63B35DC056DC8F3CC2ADF5648AF04EB" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_2D9E9F67B57318888F69DEAC1B720D74" xlink:to="loc_us-gaap_CreditCardReceivablesMember_A63B35DC056DC8F3CC2ADF5648AF04EB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InternalCreditAssessmentAxis" xlink:label="loc_us-gaap_InternalCreditAssessmentAxis_10698F8FE310102D7E15DEAC1B746F83" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFinancingReceivableRecordedInvestmentCreditQualityIndicatorTable_464526FA84F4097741D1DEAC1B71F576" xlink:to="loc_us-gaap_InternalCreditAssessmentAxis_10698F8FE310102D7E15DEAC1B746F83" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InternalCreditAssessmentDomain" xlink:label="loc_us-gaap_InternalCreditAssessmentDomain_666C0AF9F1E2E7CF4288DEAC1B74A1CD_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_InternalCreditAssessmentAxis_10698F8FE310102D7E15DEAC1B746F83" xlink:to="loc_us-gaap_InternalCreditAssessmentDomain_666C0AF9F1E2E7CF4288DEAC1B74A1CD_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InternalCreditAssessmentDomain" xlink:label="loc_us-gaap_InternalCreditAssessmentDomain_666C0AF9F1E2E7CF4288DEAC1B74A1CD" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_InternalCreditAssessmentAxis_10698F8FE310102D7E15DEAC1B746F83" xlink:to="loc_us-gaap_InternalCreditAssessmentDomain_666C0AF9F1E2E7CF4288DEAC1B74A1CD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PassMember" xlink:label="loc_us-gaap_PassMember_C5B7BDD0CCA837FB084DDEAC1B74928D" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InternalCreditAssessmentDomain_666C0AF9F1E2E7CF4288DEAC1B74A1CD" xlink:to="loc_us-gaap_PassMember_C5B7BDD0CCA837FB084DDEAC1B74928D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NonperformingFinancingReceivableMember" xlink:label="loc_us-gaap_NonperformingFinancingReceivableMember_3FB90EBD50F46A666B90DEAC1B7467CB" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InternalCreditAssessmentDomain_666C0AF9F1E2E7CF4288DEAC1B74A1CD" xlink:to="loc_us-gaap_NonperformingFinancingReceivableMember_3FB90EBD50F46A666B90DEAC1B7467CB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LoansAndLeasesReceivableNetReportedAmount" xlink:label="loc_us-gaap_LoansAndLeasesReceivableNetReportedAmount_ABB8639F7D5D095E3F15DEAC1B753642" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentLineItems_38FF8761B7700F19C108DEAC1B75FFA5" xlink:to="loc_us-gaap_LoansAndLeasesReceivableNetReportedAmount_ABB8639F7D5D095E3F15DEAC1B753642" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://mygreendot.com/role/LoansToBankCustomersLoanSummaryDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccountsNotesAndLoansReceivableLineItems" xlink:label="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_4F60D69358B5F3F9485F16C14AA7EBE3" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable" xlink:label="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_BE68BEBA1A510C35E53C16C14AA37532" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_4F60D69358B5F3F9485F16C14AA7EBE3" xlink:to="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_BE68BEBA1A510C35E53C16C14AA37532" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinancingReceivablePortfolioSegmentAxis" xlink:label="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_B6497EDD1AEAEE9F6E5916C14AA34D05" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_BE68BEBA1A510C35E53C16C14AA37532" xlink:to="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_B6497EDD1AEAEE9F6E5916C14AA34D05" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinancingReceivablePortfolioSegmentDomain" xlink:label="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_B660BD90E0296AD7403F16C14AA390D1_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_B6497EDD1AEAEE9F6E5916C14AA34D05" xlink:to="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_B660BD90E0296AD7403F16C14AA390D1_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinancingReceivablePortfolioSegmentDomain" xlink:label="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_B660BD90E0296AD7403F16C14AA390D1" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_B6497EDD1AEAEE9F6E5916C14AA34D05" xlink:to="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_B660BD90E0296AD7403F16C14AA390D1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ResidentialPortfolioSegmentMember" xlink:label="loc_us-gaap_ResidentialPortfolioSegmentMember_E5DF6737B8CC188D5ED516C14AA3A320" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_B660BD90E0296AD7403F16C14AA390D1" xlink:to="loc_us-gaap_ResidentialPortfolioSegmentMember_E5DF6737B8CC188D5ED516C14AA3A320" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommercialPortfolioSegmentMember" xlink:label="loc_us-gaap_CommercialPortfolioSegmentMember_2B2F6D029B0981DA1A6016C14AA5968B" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_B660BD90E0296AD7403F16C14AA390D1" xlink:to="loc_us-gaap_CommercialPortfolioSegmentMember_2B2F6D029B0981DA1A6016C14AA5968B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConsumerPortfolioSegmentMember" xlink:label="loc_us-gaap_ConsumerPortfolioSegmentMember_8309F901A7D3B67BF16916C14AA6500B" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_B660BD90E0296AD7403F16C14AA390D1" xlink:to="loc_us-gaap_ConsumerPortfolioSegmentMember_8309F901A7D3B67BF16916C14AA6500B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CreditCardReceivablesMember" xlink:label="loc_us-gaap_CreditCardReceivablesMember_A8D361F452A49081E2A816C14AA661E3" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_B660BD90E0296AD7403F16C14AA390D1" xlink:to="loc_us-gaap_CreditCardReceivablesMember_A8D361F452A49081E2A816C14AA661E3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinancingReceivablesPeriodPastDueAxis" xlink:label="loc_us-gaap_FinancingReceivablesPeriodPastDueAxis_135021303BF53BCEB83116C14AA6237F" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_BE68BEBA1A510C35E53C16C14AA37532" xlink:to="loc_us-gaap_FinancingReceivablesPeriodPastDueAxis_135021303BF53BCEB83116C14AA6237F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinancingReceivablesPeriodPastDueDomain" xlink:label="loc_us-gaap_FinancingReceivablesPeriodPastDueDomain_34E8D0558CF3B5F3D8C316C14AA68C7F_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FinancingReceivablesPeriodPastDueAxis_135021303BF53BCEB83116C14AA6237F" xlink:to="loc_us-gaap_FinancingReceivablesPeriodPastDueDomain_34E8D0558CF3B5F3D8C316C14AA68C7F_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinancingReceivablesPeriodPastDueDomain" xlink:label="loc_us-gaap_FinancingReceivablesPeriodPastDueDomain_34E8D0558CF3B5F3D8C316C14AA68C7F" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FinancingReceivablesPeriodPastDueAxis_135021303BF53BCEB83116C14AA6237F" xlink:to="loc_us-gaap_FinancingReceivablesPeriodPastDueDomain_34E8D0558CF3B5F3D8C316C14AA68C7F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinancingReceivables30To59DaysPastDueMember" xlink:label="loc_us-gaap_FinancingReceivables30To59DaysPastDueMember_4FABB0B2A95446FC610E16C14AA6E7AE" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivablesPeriodPastDueDomain_34E8D0558CF3B5F3D8C316C14AA68C7F" xlink:to="loc_us-gaap_FinancingReceivables30To59DaysPastDueMember_4FABB0B2A95446FC610E16C14AA6E7AE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinancingReceivables60To89DaysPastDueMember" xlink:label="loc_us-gaap_FinancingReceivables60To89DaysPastDueMember_679203B7C647A130035E16C14AA78CF7" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivablesPeriodPastDueDomain_34E8D0558CF3B5F3D8C316C14AA68C7F" xlink:to="loc_us-gaap_FinancingReceivables60To89DaysPastDueMember_679203B7C647A130035E16C14AA78CF7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember" xlink:label="loc_us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember_D789D6BB88A25C7DCC2016C14AA7BD9B" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivablesPeriodPastDueDomain_34E8D0558CF3B5F3D8C316C14AA68C7F" xlink:to="loc_us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember_D789D6BB88A25C7DCC2016C14AA7BD9B" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_FinancingReceivablesPastDueMember" xlink:label="loc_gdot_FinancingReceivablesPastDueMember_ED71577DF8D5CD26AF9916C14AA7D2BD" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivablesPeriodPastDueDomain_34E8D0558CF3B5F3D8C316C14AA68C7F" xlink:to="loc_gdot_FinancingReceivablesPastDueMember_ED71577DF8D5CD26AF9916C14AA7D2BD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinancingReceivables1To29DaysPastDueMember" xlink:label="loc_us-gaap_FinancingReceivables1To29DaysPastDueMember_B8E547613B92220DA9D016C14AA758FA" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivablesPeriodPastDueDomain_34E8D0558CF3B5F3D8C316C14AA68C7F" xlink:to="loc_us-gaap_FinancingReceivables1To29DaysPastDueMember_B8E547613B92220DA9D016C14AA758FA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinancingReceivableRecordedInvestmentPastDue" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentPastDue_14D75E52929CA41FE1A216C14AA79E87" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_4F60D69358B5F3F9485F16C14AA7EBE3" xlink:to="loc_us-gaap_FinancingReceivableRecordedInvestmentPastDue_14D75E52929CA41FE1A216C14AA79E87" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinancingReceivableRecordedInvestmentCurrent" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentCurrent_A01107F398F08F5CC1E416C14AA8517F" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_4F60D69358B5F3F9485F16C14AA7EBE3" xlink:to="loc_us-gaap_FinancingReceivableRecordedInvestmentCurrent_A01107F398F08F5CC1E416C14AA8517F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LoansAndLeasesReceivableGrossCarryingAmount" xlink:label="loc_us-gaap_LoansAndLeasesReceivableGrossCarryingAmount_418D11503799FC57AE6B16C14AA8BC2D" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_4F60D69358B5F3F9485F16C14AA7EBE3" xlink:to="loc_us-gaap_LoansAndLeasesReceivableGrossCarryingAmount_418D11503799FC57AE6B16C14AA8BC2D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinancingReceivablePercentPastDue1" xlink:label="loc_us-gaap_FinancingReceivablePercentPastDue1_CAA7EF0532DB0B97309216C14AA86E26" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_4F60D69358B5F3F9485F16C14AA7EBE3" xlink:to="loc_us-gaap_FinancingReceivablePercentPastDue1_CAA7EF0532DB0B97309216C14AA86E26" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://mygreendot.com/role/LoansToBankCustomersNonperformingLoansDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems_2F390F73DB74498169A116C0CA2D48CC" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfImpairedFinancingReceivableTable" xlink:label="loc_us-gaap_ScheduleOfImpairedFinancingReceivableTable_AEA4664EA813C39A887B16C0CA2AA21E" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems_2F390F73DB74498169A116C0CA2D48CC" xlink:to="loc_us-gaap_ScheduleOfImpairedFinancingReceivableTable_AEA4664EA813C39A887B16C0CA2AA21E" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinancingReceivablePortfolioSegmentAxis" xlink:label="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_53BDB2AAB1F48107FFFE16C0CA2BB4A5" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfImpairedFinancingReceivableTable_AEA4664EA813C39A887B16C0CA2AA21E" xlink:to="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_53BDB2AAB1F48107FFFE16C0CA2BB4A5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinancingReceivablePortfolioSegmentDomain" xlink:label="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_11F953928E1BF6EE816916C0CA2C5781_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_53BDB2AAB1F48107FFFE16C0CA2BB4A5" xlink:to="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_11F953928E1BF6EE816916C0CA2C5781_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinancingReceivablePortfolioSegmentDomain" xlink:label="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_11F953928E1BF6EE816916C0CA2C5781" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_53BDB2AAB1F48107FFFE16C0CA2BB4A5" xlink:to="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_11F953928E1BF6EE816916C0CA2C5781" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ResidentialPortfolioSegmentMember" xlink:label="loc_us-gaap_ResidentialPortfolioSegmentMember_F2A758F8E2FB26F893D516C0CA2CF504" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_11F953928E1BF6EE816916C0CA2C5781" xlink:to="loc_us-gaap_ResidentialPortfolioSegmentMember_F2A758F8E2FB26F893D516C0CA2CF504" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConsumerPortfolioSegmentMember" xlink:label="loc_us-gaap_ConsumerPortfolioSegmentMember_2799698F114FB7FB0AC216C0CA2C9D27" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_11F953928E1BF6EE816916C0CA2C5781" xlink:to="loc_us-gaap_ConsumerPortfolioSegmentMember_2799698F114FB7FB0AC216C0CA2C9D27" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CreditCardReceivablesMember" xlink:label="loc_us-gaap_CreditCardReceivablesMember_34E3879ADAD6C80FBC5016C1B3B71429" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_11F953928E1BF6EE816916C0CA2C5781" xlink:to="loc_us-gaap_CreditCardReceivablesMember_34E3879ADAD6C80FBC5016C1B3B71429" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus_8A524D39A73945426A8816C0CA2D9385" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems_2F390F73DB74498169A116C0CA2D48CC" xlink:to="loc_us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus_8A524D39A73945426A8816C0CA2D9385" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://mygreendot.com/role/LoansToBankCustomersTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/LoansToBankCustomersTroubledDebtRestructuringsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinancingReceivableModificationsLineItems" xlink:label="loc_us-gaap_FinancingReceivableModificationsLineItems_12DF589B61495EAD895FDEAC1B6943B8" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfFinancingReceivableTroubledDebtRestructuringsTable" xlink:label="loc_us-gaap_ScheduleOfFinancingReceivableTroubledDebtRestructuringsTable_81D95543EDB468A35F77DEAC1B6766AF" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FinancingReceivableModificationsLineItems_12DF589B61495EAD895FDEAC1B6943B8" xlink:to="loc_us-gaap_ScheduleOfFinancingReceivableTroubledDebtRestructuringsTable_81D95543EDB468A35F77DEAC1B6766AF" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinancingReceivablePortfolioSegmentAxis" xlink:label="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_BD2C608FD04E6D4B2CB3DEAC1B670E20" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFinancingReceivableTroubledDebtRestructuringsTable_81D95543EDB468A35F77DEAC1B6766AF" xlink:to="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_BD2C608FD04E6D4B2CB3DEAC1B670E20" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinancingReceivablePortfolioSegmentDomain" xlink:label="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_F87D3D7A65EF6E0BA80BDEAC1B68C55B_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_BD2C608FD04E6D4B2CB3DEAC1B670E20" xlink:to="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_F87D3D7A65EF6E0BA80BDEAC1B68C55B_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinancingReceivablePortfolioSegmentDomain" xlink:label="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_F87D3D7A65EF6E0BA80BDEAC1B68C55B" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_BD2C608FD04E6D4B2CB3DEAC1B670E20" xlink:to="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_F87D3D7A65EF6E0BA80BDEAC1B68C55B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ResidentialPortfolioSegmentMember" xlink:label="loc_us-gaap_ResidentialPortfolioSegmentMember_1EDDB36D8CABFA33B5D4DEAC1B68E67B" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_F87D3D7A65EF6E0BA80BDEAC1B68C55B" xlink:to="loc_us-gaap_ResidentialPortfolioSegmentMember_1EDDB36D8CABFA33B5D4DEAC1B68E67B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConsumerPortfolioSegmentMember" xlink:label="loc_us-gaap_ConsumerPortfolioSegmentMember_D25B66112BE10BF54D1FDEAC1B682E71" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_F87D3D7A65EF6E0BA80BDEAC1B68C55B" xlink:to="loc_us-gaap_ConsumerPortfolioSegmentMember_D25B66112BE10BF54D1FDEAC1B682E71" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance" xlink:label="loc_us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance_DE807E527ABA54A37684DEAC1B697BA2" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableModificationsLineItems_12DF589B61495EAD895FDEAC1B6943B8" xlink:to="loc_us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance_DE807E527ABA54A37684DEAC1B697BA2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FinancingReceivableModificationsRecordedInvestment" xlink:label="loc_us-gaap_FinancingReceivableModificationsRecordedInvestment_C4144F9BD3F0CC451B53DEAC1B698588" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FinancingReceivableModificationsLineItems_12DF589B61495EAD895FDEAC1B6943B8" xlink:to="loc_us-gaap_FinancingReceivableModificationsRecordedInvestment_C4144F9BD3F0CC451B53DEAC1B698588" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://mygreendot.com/role/NotePayable" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/NotePayableNarrativeDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LineOfCreditFacilityLineItems" xlink:label="loc_us-gaap_LineOfCreditFacilityLineItems_96D634517A024C13F3EA27FF94F51452" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LineOfCreditFacilityTable" xlink:label="loc_us-gaap_LineOfCreditFacilityTable_EA9A4A88CF2BCB58FF0C27FF94F0F6CB" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_96D634517A024C13F3EA27FF94F51452" xlink:to="loc_us-gaap_LineOfCreditFacilityTable_EA9A4A88CF2BCB58FF0C27FF94F0F6CB" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongtermDebtTypeAxis" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_F5FD9CE7194A95AF122727FF94F03BAB" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_EA9A4A88CF2BCB58FF0C27FF94F0F6CB" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_F5FD9CE7194A95AF122727FF94F03BAB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongtermDebtTypeDomain" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_FBF31EB92C28894DD9E327FF94F1124E_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_F5FD9CE7194A95AF122727FF94F03BAB" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_FBF31EB92C28894DD9E327FF94F1124E_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongtermDebtTypeDomain" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_FBF31EB92C28894DD9E327FF94F1124E" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_F5FD9CE7194A95AF122727FF94F03BAB" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_FBF31EB92C28894DD9E327FF94F1124E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LineOfCreditMember" xlink:label="loc_us-gaap_LineOfCreditMember_82F1D4B421A13361E13C27FF94F11CDC" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_FBF31EB92C28894DD9E327FF94F1124E" xlink:to="loc_us-gaap_LineOfCreditMember_82F1D4B421A13361E13C27FF94F11CDC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LineOfCreditFacilityAxis" xlink:label="loc_us-gaap_LineOfCreditFacilityAxis_D8C9D3D1B9AAE7E0FD6027FF94F13927" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_EA9A4A88CF2BCB58FF0C27FF94F0F6CB" xlink:to="loc_us-gaap_LineOfCreditFacilityAxis_D8C9D3D1B9AAE7E0FD6027FF94F13927" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LineOfCreditFacilityLenderDomain" xlink:label="loc_us-gaap_LineOfCreditFacilityLenderDomain_F1712E1F0F67A95D3A1A27FF94F1B0C8_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LineOfCreditFacilityAxis_D8C9D3D1B9AAE7E0FD6027FF94F13927" xlink:to="loc_us-gaap_LineOfCreditFacilityLenderDomain_F1712E1F0F67A95D3A1A27FF94F1B0C8_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LineOfCreditFacilityLenderDomain" xlink:label="loc_us-gaap_LineOfCreditFacilityLenderDomain_F1712E1F0F67A95D3A1A27FF94F1B0C8" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LineOfCreditFacilityAxis_D8C9D3D1B9AAE7E0FD6027FF94F13927" xlink:to="loc_us-gaap_LineOfCreditFacilityLenderDomain_F1712E1F0F67A95D3A1A27FF94F1B0C8" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_BankOfAmericaN.A.WellsFargoBankNationalAssociationAndOtherLendersMember" xlink:label="loc_gdot_BankOfAmericaN.A.WellsFargoBankNationalAssociationAndOtherLendersMember_84AD2E9C675C20C01A4627FF94F21EC0" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLenderDomain_F1712E1F0F67A95D3A1A27FF94F1B0C8" xlink:to="loc_gdot_BankOfAmericaN.A.WellsFargoBankNationalAssociationAndOtherLendersMember_84AD2E9C675C20C01A4627FF94F21EC0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CreditFacilityAxis" xlink:label="loc_us-gaap_CreditFacilityAxis_885416FCDE4EDCAF68F927FF94F22595" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_EA9A4A88CF2BCB58FF0C27FF94F0F6CB" xlink:to="loc_us-gaap_CreditFacilityAxis_885416FCDE4EDCAF68F927FF94F22595" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CreditFacilityDomain" xlink:label="loc_us-gaap_CreditFacilityDomain_F160196FC3696C5F6DC127FF94F2EACC_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CreditFacilityAxis_885416FCDE4EDCAF68F927FF94F22595" xlink:to="loc_us-gaap_CreditFacilityDomain_F160196FC3696C5F6DC127FF94F2EACC_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CreditFacilityDomain" xlink:label="loc_us-gaap_CreditFacilityDomain_F160196FC3696C5F6DC127FF94F2EACC" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CreditFacilityAxis_885416FCDE4EDCAF68F927FF94F22595" xlink:to="loc_us-gaap_CreditFacilityDomain_F160196FC3696C5F6DC127FF94F2EACC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RevolvingCreditFacilityMember" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_01FEBBE29EA340DAAC2D27FF94F2B7FC" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_F160196FC3696C5F6DC127FF94F2EACC" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_01FEBBE29EA340DAAC2D27FF94F2B7FC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SecuredDebtMember" xlink:label="loc_us-gaap_SecuredDebtMember_7453D1CB37BABC9D2E2527FF94F302D7" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_F160196FC3696C5F6DC127FF94F2EACC" xlink:to="loc_us-gaap_SecuredDebtMember_7453D1CB37BABC9D2E2527FF94F302D7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_VariableRateAxis" xlink:label="loc_us-gaap_VariableRateAxis_BF180427AE9AC350F7E727FF94F39CC2" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_EA9A4A88CF2BCB58FF0C27FF94F0F6CB" xlink:to="loc_us-gaap_VariableRateAxis_BF180427AE9AC350F7E727FF94F39CC2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_VariableRateDomain" xlink:label="loc_us-gaap_VariableRateDomain_72BDB40799D149FFF3F227FF94F3794B_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_VariableRateAxis_BF180427AE9AC350F7E727FF94F39CC2" xlink:to="loc_us-gaap_VariableRateDomain_72BDB40799D149FFF3F227FF94F3794B_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_VariableRateDomain" xlink:label="loc_us-gaap_VariableRateDomain_72BDB40799D149FFF3F227FF94F3794B" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_VariableRateAxis_BF180427AE9AC350F7E727FF94F39CC2" xlink:to="loc_us-gaap_VariableRateDomain_72BDB40799D149FFF3F227FF94F3794B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LondonInterbankOfferedRateLIBORMember" xlink:label="loc_us-gaap_LondonInterbankOfferedRateLIBORMember_3772468328D721C0DE8C27FF94F3538D" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableRateDomain_72BDB40799D149FFF3F227FF94F3794B" xlink:to="loc_us-gaap_LondonInterbankOfferedRateLIBORMember_3772468328D721C0DE8C27FF94F3538D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BaseRateMember" xlink:label="loc_us-gaap_BaseRateMember_CF66593DC397CD49BF2827FF94F471B6" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableRateDomain_72BDB40799D149FFF3F227FF94F3794B" xlink:to="loc_us-gaap_BaseRateMember_CF66593DC397CD49BF2827FF94F471B6" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_BaseRateConditionOneMember" xlink:label="loc_gdot_BaseRateConditionOneMember_5641B2A78EAE88C2052427FF94F4194E" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BaseRateMember_CF66593DC397CD49BF2827FF94F471B6" xlink:to="loc_gdot_BaseRateConditionOneMember_5641B2A78EAE88C2052427FF94F4194E" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_BaseRateConditionTwoMember" xlink:label="loc_gdot_BaseRateConditionTwoMember_C72D79B0AD08D98BFE3027FF94F42F81" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BaseRateMember_CF66593DC397CD49BF2827FF94F471B6" xlink:to="loc_gdot_BaseRateConditionTwoMember_C72D79B0AD08D98BFE3027FF94F42F81" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_RangeAxis" xlink:label="loc_srt_RangeAxis_B0FB90B2A80A590866D427FF94F4C923" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_EA9A4A88CF2BCB58FF0C27FF94F0F6CB" xlink:to="loc_srt_RangeAxis_B0FB90B2A80A590866D427FF94F4C923" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_RangeMember" xlink:label="loc_srt_RangeMember_BA61483BA377068C063627FF94F46549_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_B0FB90B2A80A590866D427FF94F4C923" xlink:to="loc_srt_RangeMember_BA61483BA377068C063627FF94F46549_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_RangeMember" xlink:label="loc_srt_RangeMember_BA61483BA377068C063627FF94F46549" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_B0FB90B2A80A590866D427FF94F4C923" xlink:to="loc_srt_RangeMember_BA61483BA377068C063627FF94F46549" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_MinimumMember" xlink:label="loc_srt_MinimumMember_647E414A64A216AE5FE427FF94F527C8" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_BA61483BA377068C063627FF94F46549" xlink:to="loc_srt_MinimumMember_647E414A64A216AE5FE427FF94F527C8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_MaximumMember" xlink:label="loc_srt_MaximumMember_631224BB70B862FF47C927FF94F53750" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_BA61483BA377068C063627FF94F46549" xlink:to="loc_srt_MaximumMember_631224BB70B862FF47C927FF94F53750" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_1F1836F103E2B10E9B3427FF94F55C41" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_96D634517A024C13F3EA27FF94F51452" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_1F1836F103E2B10E9B3427FF94F55C41" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentTerm" xlink:label="loc_us-gaap_DebtInstrumentTerm_B8478E65C912D7EEBD2327FF94F6366C" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_96D634517A024C13F3EA27FF94F51452" xlink:to="loc_us-gaap_DebtInstrumentTerm_B8478E65C912D7EEBD2327FF94F6366C" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_LineOfCreditFacilityAccordionFeaturePotentialMaximumBorrowingCapacityIncrease" xlink:label="loc_gdot_LineOfCreditFacilityAccordionFeaturePotentialMaximumBorrowingCapacityIncrease_EC1BAFCACD838CBE466827FF94F6F1A1" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_96D634517A024C13F3EA27FF94F51452" xlink:to="loc_gdot_LineOfCreditFacilityAccordionFeaturePotentialMaximumBorrowingCapacityIncrease_EC1BAFCACD838CBE466827FF94F6F1A1" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_DebtInstrumentStatedInterestSpread" xlink:label="loc_gdot_DebtInstrumentStatedInterestSpread_0EC2D92A5DDFEE08961927FF94F68778" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_96D634517A024C13F3EA27FF94F51452" xlink:to="loc_gdot_DebtInstrumentStatedInterestSpread_0EC2D92A5DDFEE08961927FF94F68778" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtInstrumentBasisSpreadOnVariableRate1" xlink:label="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_2D23918F2E921FE9E06E27FF94F611BE" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_96D634517A024C13F3EA27FF94F51452" xlink:to="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_2D23918F2E921FE9E06E27FF94F611BE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd" xlink:label="loc_us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd_D52DC076EAD93AA976D827FF94F629EF" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_96D634517A024C13F3EA27FF94F51452" xlink:to="loc_us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd_D52DC076EAD93AA976D827FF94F629EF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InterestExpenseDebt" xlink:label="loc_us-gaap_InterestExpenseDebt_AE4B79C98BF82E00BDCD27FF94F61A2E" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_96D634517A024C13F3EA27FF94F51452" xlink:to="loc_us-gaap_InterestExpenseDebt_AE4B79C98BF82E00BDCD27FF94F61A2E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LineOfCreditFacilityCommitmentFeePercentage" xlink:label="loc_us-gaap_LineOfCreditFacilityCommitmentFeePercentage_32D9C2A134F4AB0DA65927FF94F750A9" xlink:type="locator" />
    <link:definitionArc order="8" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_96D634517A024C13F3EA27FF94F51452" xlink:to="loc_us-gaap_LineOfCreditFacilityCommitmentFeePercentage_32D9C2A134F4AB0DA65927FF94F750A9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LineOfCreditFacilityPeriodicPaymentPrincipal" xlink:label="loc_us-gaap_LineOfCreditFacilityPeriodicPaymentPrincipal_6C78E4AE4D580D29F0F227FF94F76381" xlink:type="locator" />
    <link:definitionArc order="9" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_96D634517A024C13F3EA27FF94F51452" xlink:to="loc_us-gaap_LineOfCreditFacilityPeriodicPaymentPrincipal_6C78E4AE4D580D29F0F227FF94F76381" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://mygreendot.com/role/NotePayableOutstandingDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LineOfCreditFacilityLineItems" xlink:label="loc_us-gaap_LineOfCreditFacilityLineItems_8031BC4544BC01B7079627FF94E97DC8" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LineOfCreditFacilityTable" xlink:label="loc_us-gaap_LineOfCreditFacilityTable_99A2FADC41B20D44382527FF94E65C13" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_8031BC4544BC01B7079627FF94E97DC8" xlink:to="loc_us-gaap_LineOfCreditFacilityTable_99A2FADC41B20D44382527FF94E65C13" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongtermDebtTypeAxis" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_DA6C1DC7F69092E8C70F27FF94E6C4C8" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_99A2FADC41B20D44382527FF94E65C13" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_DA6C1DC7F69092E8C70F27FF94E6C4C8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongtermDebtTypeDomain" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_0ED34470387682939BFE27FF94E68A03_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_DA6C1DC7F69092E8C70F27FF94E6C4C8" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_0ED34470387682939BFE27FF94E68A03_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongtermDebtTypeDomain" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_0ED34470387682939BFE27FF94E68A03" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_DA6C1DC7F69092E8C70F27FF94E6C4C8" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_0ED34470387682939BFE27FF94E68A03" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LineOfCreditMember" xlink:label="loc_us-gaap_LineOfCreditMember_72D4E2877F90913E529D27FF94E60591" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_0ED34470387682939BFE27FF94E68A03" xlink:to="loc_us-gaap_LineOfCreditMember_72D4E2877F90913E529D27FF94E60591" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LineOfCreditFacilityAxis" xlink:label="loc_us-gaap_LineOfCreditFacilityAxis_A56AE5AAA53115E278E127FF94E77864" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_99A2FADC41B20D44382527FF94E65C13" xlink:to="loc_us-gaap_LineOfCreditFacilityAxis_A56AE5AAA53115E278E127FF94E77864" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LineOfCreditFacilityLenderDomain" xlink:label="loc_us-gaap_LineOfCreditFacilityLenderDomain_21C489471BAFC820A30227FF94E76F47_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LineOfCreditFacilityAxis_A56AE5AAA53115E278E127FF94E77864" xlink:to="loc_us-gaap_LineOfCreditFacilityLenderDomain_21C489471BAFC820A30227FF94E76F47_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LineOfCreditFacilityLenderDomain" xlink:label="loc_us-gaap_LineOfCreditFacilityLenderDomain_21C489471BAFC820A30227FF94E76F47" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LineOfCreditFacilityAxis_A56AE5AAA53115E278E127FF94E77864" xlink:to="loc_us-gaap_LineOfCreditFacilityLenderDomain_21C489471BAFC820A30227FF94E76F47" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_BankOfAmericaN.A.WellsFargoBankNationalAssociationAndOtherLendersMember" xlink:label="loc_gdot_BankOfAmericaN.A.WellsFargoBankNationalAssociationAndOtherLendersMember_8B748120A895D928092327FF94E78654" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLenderDomain_21C489471BAFC820A30227FF94E76F47" xlink:to="loc_gdot_BankOfAmericaN.A.WellsFargoBankNationalAssociationAndOtherLendersMember_8B748120A895D928092327FF94E78654" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CreditFacilityAxis" xlink:label="loc_us-gaap_CreditFacilityAxis_6F6501F0581A6A15E99A27FF94E8B8E8" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_99A2FADC41B20D44382527FF94E65C13" xlink:to="loc_us-gaap_CreditFacilityAxis_6F6501F0581A6A15E99A27FF94E8B8E8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CreditFacilityDomain" xlink:label="loc_us-gaap_CreditFacilityDomain_27330C45BF54D8D6E26427FF94E863DF_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CreditFacilityAxis_6F6501F0581A6A15E99A27FF94E8B8E8" xlink:to="loc_us-gaap_CreditFacilityDomain_27330C45BF54D8D6E26427FF94E863DF_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CreditFacilityDomain" xlink:label="loc_us-gaap_CreditFacilityDomain_27330C45BF54D8D6E26427FF94E863DF" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CreditFacilityAxis_6F6501F0581A6A15E99A27FF94E8B8E8" xlink:to="loc_us-gaap_CreditFacilityDomain_27330C45BF54D8D6E26427FF94E863DF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SecuredDebtMember" xlink:label="loc_us-gaap_SecuredDebtMember_E5D0D61378A865F9ACA627FF94E89D68" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_27330C45BF54D8D6E26427FF94E863DF" xlink:to="loc_us-gaap_SecuredDebtMember_E5D0D61378A865F9ACA627FF94E89D68" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RevolvingCreditFacilityMember" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_B395ACD0274DD396F91427FF94E81E28" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_27330C45BF54D8D6E26427FF94E863DF" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_B395ACD0274DD396F91427FF94E81E28" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredFinanceCostsNet" xlink:label="loc_us-gaap_DeferredFinanceCostsNet_6349AC28F9B89ECB477A27FF94E969F6" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_8031BC4544BC01B7079627FF94E97DC8" xlink:to="loc_us-gaap_DeferredFinanceCostsNet_6349AC28F9B89ECB477A27FF94E969F6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LineOfCredit" xlink:label="loc_us-gaap_LineOfCredit_C47426F631B67D996C4927FF94E95B2E" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_8031BC4544BC01B7079627FF94E97DC8" xlink:to="loc_us-gaap_LineOfCredit_C47426F631B67D996C4927FF94E95B2E" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://mygreendot.com/role/NotePayableTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/Organization" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/OrganizationDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/PropertyAndEquipment" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/PropertyAndEquipmentNarrativeDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_C7925AF1F9AD75B64462E3A0239C557B" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_C3810809751842A5F5CCE3A0239BA058" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_C7925AF1F9AD75B64462E3A0239C557B" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_C3810809751842A5F5CCE3A0239BA058" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_8D8295339D77CA695D01E3A0239B5ED4" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_C3810809751842A5F5CCE3A0239BA058" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_8D8295339D77CA695D01E3A0239B5ED4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_FBD3F45D4E92376C9D5DE3A0239C5B4B_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_8D8295339D77CA695D01E3A0239B5ED4" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_FBD3F45D4E92376C9D5DE3A0239C5B4B_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_FBD3F45D4E92376C9D5DE3A0239C5B4B" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_8D8295339D77CA695D01E3A0239B5ED4" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_FBD3F45D4E92376C9D5DE3A0239C5B4B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SoftwareDevelopmentMember" xlink:label="loc_us-gaap_SoftwareDevelopmentMember_AA5D80174D95C98D846DE3A0239CBEC4" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_FBD3F45D4E92376C9D5DE3A0239C5B4B" xlink:to="loc_us-gaap_SoftwareDevelopmentMember_AA5D80174D95C98D846DE3A0239CBEC4" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_DepreciationandAmortizationofLeasedAssets" xlink:label="loc_gdot_DepreciationandAmortizationofLeasedAssets_1CCEDD0A54816CB27F79E3A0239DCB20" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_C7925AF1F9AD75B64462E3A0239C557B" xlink:to="loc_gdot_DepreciationandAmortizationofLeasedAssets_1CCEDD0A54816CB27F79E3A0239DCB20" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DepreciationDepletionAndAmortization" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_4DCD223799FE15CD43C8E3A0239D60D7" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_C7925AF1F9AD75B64462E3A0239C557B" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortization_4DCD223799FE15CD43C8E3A0239D60D7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AssetImpairmentCharges" xlink:label="loc_us-gaap_AssetImpairmentCharges_EEED91B4993541B3CBA5E3A0239DE3D7" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_C7925AF1F9AD75B64462E3A0239C557B" xlink:to="loc_us-gaap_AssetImpairmentCharges_EEED91B4993541B3CBA5E3A0239DE3D7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CapitalizedComputerSoftwareNet" xlink:label="loc_us-gaap_CapitalizedComputerSoftwareNet_5B0F6B7A1631394043EEE3A0239DCA14" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_C7925AF1F9AD75B64462E3A0239C557B" xlink:to="loc_us-gaap_CapitalizedComputerSoftwareNet_5B0F6B7A1631394043EEE3A0239DCA14" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://mygreendot.com/role/PropertyAndEquipmentPropertyAndEquipmentScheduleDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_E47291A4565AE4A106EBE3A023A6646F" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_E920FBBB52C099CF823BE3A023A3901F" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_E47291A4565AE4A106EBE3A023A6646F" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_E920FBBB52C099CF823BE3A023A3901F" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_F2DCD447A8C66C7DC433E3A023A43524" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_E920FBBB52C099CF823BE3A023A3901F" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_F2DCD447A8C66C7DC433E3A023A43524" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_C6813200B0E387F23532E3A023A466B3_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_F2DCD447A8C66C7DC433E3A023A43524" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_C6813200B0E387F23532E3A023A466B3_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_C6813200B0E387F23532E3A023A466B3" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_F2DCD447A8C66C7DC433E3A023A43524" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_C6813200B0E387F23532E3A023A466B3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LandMember" xlink:label="loc_us-gaap_LandMember_6EB55E06F9D751BA0B70E3A023A43065" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_C6813200B0E387F23532E3A023A466B3" xlink:to="loc_us-gaap_LandMember_6EB55E06F9D751BA0B70E3A023A43065" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BuildingMember" xlink:label="loc_us-gaap_BuildingMember_B4F64C890B796B1A26A0E3A023A5C19B" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_C6813200B0E387F23532E3A023A466B3" xlink:to="loc_us-gaap_BuildingMember_B4F64C890B796B1A26A0E3A023A5C19B" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_ComputerEquipmentFurnitureAndOfficeEquipmentMember" xlink:label="loc_gdot_ComputerEquipmentFurnitureAndOfficeEquipmentMember_68AEB1B1B5B166F8C591E3A023A55B98" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_C6813200B0E387F23532E3A023A466B3" xlink:to="loc_gdot_ComputerEquipmentFurnitureAndOfficeEquipmentMember_68AEB1B1B5B166F8C591E3A023A55B98" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ComputerSoftwareIntangibleAssetMember" xlink:label="loc_us-gaap_ComputerSoftwareIntangibleAssetMember_3DBF59C99074CD33EB37E3A023A5916F" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_C6813200B0E387F23532E3A023A466B3" xlink:to="loc_us-gaap_ComputerSoftwareIntangibleAssetMember_3DBF59C99074CD33EB37E3A023A5916F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SoftwareDevelopmentMember" xlink:label="loc_us-gaap_SoftwareDevelopmentMember_8DD9749D44A4A2CF38F6E3A023A5FBC0" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_C6813200B0E387F23532E3A023A466B3" xlink:to="loc_us-gaap_SoftwareDevelopmentMember_8DD9749D44A4A2CF38F6E3A023A5FBC0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LeaseholdImprovementsMember" xlink:label="loc_us-gaap_LeaseholdImprovementsMember_E578E027A9DE6A8480C8E3A023A5BA54" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_C6813200B0E387F23532E3A023A466B3" xlink:to="loc_us-gaap_LeaseholdImprovementsMember_E578E027A9DE6A8480C8E3A023A5BA54" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentGross" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentGross_C20EE2C502CC50EDF1CDE3A023A61533" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_E47291A4565AE4A106EBE3A023A6646F" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentGross_C20EE2C502CC50EDF1CDE3A023A61533" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:label="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_F3DE60C5C1579046BF6BE3A023A6760C" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_E47291A4565AE4A106EBE3A023A6646F" xlink:to="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_F3DE60C5C1579046BF6BE3A023A6760C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_FA9ADAAC70A1EDEF357BE3A023A69E33" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_E47291A4565AE4A106EBE3A023A6646F" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_FA9ADAAC70A1EDEF357BE3A023A69E33" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://mygreendot.com/role/PropertyAndEquipmentTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/RegulatoryRequirements" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/RegulatoryRequirementsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsLineItems" xlink:label="loc_us-gaap_ComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsLineItems_56A3E54FF16B224F9EF1E2504CF91344" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsTable" xlink:label="loc_us-gaap_ScheduleOfComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsTable_9DA8293AB38A288602CAE2504CF6D867" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsLineItems_56A3E54FF16B224F9EF1E2504CF91344" xlink:to="loc_us-gaap_ScheduleOfComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsTable_9DA8293AB38A288602CAE2504CF6D867" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_LegalEntityAxis" xlink:label="loc_dei_LegalEntityAxis_6CB42C47C0926D7ED9FAE2504CF8CDE3" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsTable_9DA8293AB38A288602CAE2504CF6D867" xlink:to="loc_dei_LegalEntityAxis_6CB42C47C0926D7ED9FAE2504CF8CDE3" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_EntityDomain" xlink:label="loc_dei_EntityDomain_04724D9C30BD7D0F0CE0E2504CF8D89E_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_6CB42C47C0926D7ED9FAE2504CF8CDE3" xlink:to="loc_dei_EntityDomain_04724D9C30BD7D0F0CE0E2504CF8D89E_default" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/dei/2018/dei-2018-01-31.xsd#dei_EntityDomain" xlink:label="loc_dei_EntityDomain_04724D9C30BD7D0F0CE0E2504CF8D89E" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_6CB42C47C0926D7ED9FAE2504CF8CDE3" xlink:to="loc_dei_EntityDomain_04724D9C30BD7D0F0CE0E2504CF8D89E" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_GreenDotCorporationMember" xlink:label="loc_gdot_GreenDotCorporationMember_68385BD742652B20144AE2504CF9ED06" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_04724D9C30BD7D0F0CE0E2504CF8D89E" xlink:to="loc_gdot_GreenDotCorporationMember_68385BD742652B20144AE2504CF9ED06" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_GreenDotBankMember" xlink:label="loc_gdot_GreenDotBankMember_F1EF9600C912341626DFE2504CF9E8A8" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_04724D9C30BD7D0F0CE0E2504CF8D89E" xlink:to="loc_gdot_GreenDotBankMember_F1EF9600C912341626DFE2504CF9E8A8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TierOneLeverageCapital" xlink:label="loc_us-gaap_TierOneLeverageCapital_635D7E413C3CF66C1365E2504CFAEBC2" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsLineItems_56A3E54FF16B224F9EF1E2504CF91344" xlink:to="loc_us-gaap_TierOneLeverageCapital_635D7E413C3CF66C1365E2504CFAEBC2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TierOneLeverageCapitalToAverageAssets" xlink:label="loc_us-gaap_TierOneLeverageCapitalToAverageAssets_95E614B96255C2469263E2504CFAA790" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsLineItems_56A3E54FF16B224F9EF1E2504CF91344" xlink:to="loc_us-gaap_TierOneLeverageCapitalToAverageAssets_95E614B96255C2469263E2504CFAA790" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets" xlink:label="loc_us-gaap_TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets_041503617516CD646C7EE2504CFA3558" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsLineItems_56A3E54FF16B224F9EF1E2504CF91344" xlink:to="loc_us-gaap_TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets_041503617516CD646C7EE2504CFA3558" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets" xlink:label="loc_us-gaap_TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets_E0A95C6AC897A07FB157E2504CFACDAB" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsLineItems_56A3E54FF16B224F9EF1E2504CF91344" xlink:to="loc_us-gaap_TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets_E0A95C6AC897A07FB157E2504CFACDAB" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_TierOneCommonEquity" xlink:label="loc_gdot_TierOneCommonEquity_994155EF2B947452B543E2504CFBAAFF" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsLineItems_56A3E54FF16B224F9EF1E2504CF91344" xlink:to="loc_gdot_TierOneCommonEquity_994155EF2B947452B543E2504CFBAAFF" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_TierOneCommonEquitytoAverageAssets" xlink:label="loc_gdot_TierOneCommonEquitytoAverageAssets_249650321B9CC84151FDE2504CFB4B53" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsLineItems_56A3E54FF16B224F9EF1E2504CF91344" xlink:to="loc_gdot_TierOneCommonEquitytoAverageAssets_249650321B9CC84151FDE2504CFB4B53" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_TierOneCommonEquityRequiredForCapitalAdequacytoAverageAssets" xlink:label="loc_gdot_TierOneCommonEquityRequiredForCapitalAdequacytoAverageAssets_A2E0187D511F4533C4F5E2504CFB2E80" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsLineItems_56A3E54FF16B224F9EF1E2504CF91344" xlink:to="loc_gdot_TierOneCommonEquityRequiredForCapitalAdequacytoAverageAssets_A2E0187D511F4533C4F5E2504CFB2E80" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_TierOneCommonEquityCapitalRequiredtobeWellCapitalizedtoAverageAssets" xlink:label="loc_gdot_TierOneCommonEquityCapitalRequiredtobeWellCapitalizedtoAverageAssets_F1A5D86338ED6E32E9DDE2504CFBE5B0" xlink:type="locator" />
    <link:definitionArc order="8" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsLineItems_56A3E54FF16B224F9EF1E2504CF91344" xlink:to="loc_gdot_TierOneCommonEquityCapitalRequiredtobeWellCapitalizedtoAverageAssets_F1A5D86338ED6E32E9DDE2504CFBE5B0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TierOneRiskBasedCapital" xlink:label="loc_us-gaap_TierOneRiskBasedCapital_88275AD8036283D158E2E2504CFBDAE1" xlink:type="locator" />
    <link:definitionArc order="9" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsLineItems_56A3E54FF16B224F9EF1E2504CF91344" xlink:to="loc_us-gaap_TierOneRiskBasedCapital_88275AD8036283D158E2E2504CFBDAE1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TierOneRiskBasedCapitalToRiskWeightedAssets" xlink:label="loc_us-gaap_TierOneRiskBasedCapitalToRiskWeightedAssets_FB8942135E2D82BC9E53E2504CFB2B67" xlink:type="locator" />
    <link:definitionArc order="10" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsLineItems_56A3E54FF16B224F9EF1E2504CF91344" xlink:to="loc_us-gaap_TierOneRiskBasedCapitalToRiskWeightedAssets_FB8942135E2D82BC9E53E2504CFB2B67" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets" xlink:label="loc_us-gaap_TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets_DCD71B91E881EB60AF89E2504CFC837C" xlink:type="locator" />
    <link:definitionArc order="11" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsLineItems_56A3E54FF16B224F9EF1E2504CF91344" xlink:to="loc_us-gaap_TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets_DCD71B91E881EB60AF89E2504CFC837C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets" xlink:label="loc_us-gaap_TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets_97E2DE190707C69000D2E2504CFCB4F1" xlink:type="locator" />
    <link:definitionArc order="12" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsLineItems_56A3E54FF16B224F9EF1E2504CF91344" xlink:to="loc_us-gaap_TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets_97E2DE190707C69000D2E2504CFCB4F1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_Capital" xlink:label="loc_us-gaap_Capital_53CCB15B6D3C61C71D3CE2504CFCFFE6" xlink:type="locator" />
    <link:definitionArc order="13" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsLineItems_56A3E54FF16B224F9EF1E2504CF91344" xlink:to="loc_us-gaap_Capital_53CCB15B6D3C61C71D3CE2504CFCFFE6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CapitalToRiskWeightedAssets" xlink:label="loc_us-gaap_CapitalToRiskWeightedAssets_F19EDF9ACF44EEC473DDE2504CFC5829" xlink:type="locator" />
    <link:definitionArc order="14" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsLineItems_56A3E54FF16B224F9EF1E2504CF91344" xlink:to="loc_us-gaap_CapitalToRiskWeightedAssets_F19EDF9ACF44EEC473DDE2504CFC5829" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CapitalRequiredForCapitalAdequacyToRiskWeightedAssets" xlink:label="loc_us-gaap_CapitalRequiredForCapitalAdequacyToRiskWeightedAssets_00AAC75B5B98F9537E8DE2504CFCFD97" xlink:type="locator" />
    <link:definitionArc order="15" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsLineItems_56A3E54FF16B224F9EF1E2504CF91344" xlink:to="loc_us-gaap_CapitalRequiredForCapitalAdequacyToRiskWeightedAssets_00AAC75B5B98F9537E8DE2504CFCFD97" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets" xlink:label="loc_us-gaap_CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets_FBD7D6F3B904A7EE6CBAE2504CFC4AE1" xlink:type="locator" />
    <link:definitionArc order="16" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsLineItems_56A3E54FF16B224F9EF1E2504CF91344" xlink:to="loc_us-gaap_CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets_FBD7D6F3B904A7EE6CBAE2504CFC4AE1" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://mygreendot.com/role/RegulatoryRequirementsTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/RevenuesNarrativeDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/RevenuesRevenues" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/RevenuesScheduleOfDisaggregationOfRevenueDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RevenueInitialApplicationPeriodCumulativeEffectTransitionLineItems" xlink:label="loc_us-gaap_RevenueInitialApplicationPeriodCumulativeEffectTransitionLineItems_D5106BC325D1649835B2E3A0245BA04B" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RevenueInitialApplicationPeriodCumulativeEffectTransitionTable" xlink:label="loc_us-gaap_RevenueInitialApplicationPeriodCumulativeEffectTransitionTable_EB5942D0428FD80FA7FCE3A024581A9C" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RevenueInitialApplicationPeriodCumulativeEffectTransitionLineItems_D5106BC325D1649835B2E3A0245BA04B" xlink:to="loc_us-gaap_RevenueInitialApplicationPeriodCumulativeEffectTransitionTable_EB5942D0428FD80FA7FCE3A024581A9C" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TimingOfTransferOfGoodOrServiceAxis" xlink:label="loc_us-gaap_TimingOfTransferOfGoodOrServiceAxis_55405718A0B3A1BB623FE3A024590FCC" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_RevenueInitialApplicationPeriodCumulativeEffectTransitionTable_EB5942D0428FD80FA7FCE3A024581A9C" xlink:to="loc_us-gaap_TimingOfTransferOfGoodOrServiceAxis_55405718A0B3A1BB623FE3A024590FCC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TimingOfTransferOfGoodOrServiceDomain" xlink:label="loc_us-gaap_TimingOfTransferOfGoodOrServiceDomain_375317BEBE0BF55F1B05E3A02459CB41_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_TimingOfTransferOfGoodOrServiceAxis_55405718A0B3A1BB623FE3A024590FCC" xlink:to="loc_us-gaap_TimingOfTransferOfGoodOrServiceDomain_375317BEBE0BF55F1B05E3A02459CB41_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TimingOfTransferOfGoodOrServiceDomain" xlink:label="loc_us-gaap_TimingOfTransferOfGoodOrServiceDomain_375317BEBE0BF55F1B05E3A02459CB41" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_TimingOfTransferOfGoodOrServiceAxis_55405718A0B3A1BB623FE3A024590FCC" xlink:to="loc_us-gaap_TimingOfTransferOfGoodOrServiceDomain_375317BEBE0BF55F1B05E3A02459CB41" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TransferredAtPointInTimeMember" xlink:label="loc_us-gaap_TransferredAtPointInTimeMember_4A3D5161F5770B0D92A7E3A024592458" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TimingOfTransferOfGoodOrServiceDomain_375317BEBE0BF55F1B05E3A02459CB41" xlink:to="loc_us-gaap_TransferredAtPointInTimeMember_4A3D5161F5770B0D92A7E3A024592458" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TransferredOverTimeMember" xlink:label="loc_us-gaap_TransferredOverTimeMember_BBEBA852B02F99DBAD81E3A0245A1B5F" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TimingOfTransferOfGoodOrServiceDomain_375317BEBE0BF55F1B05E3A02459CB41" xlink:to="loc_us-gaap_TransferredOverTimeMember_BBEBA852B02F99DBAD81E3A0245A1B5F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_1F6FFC86772E2AA40F64E3A0245AF7F0" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_RevenueInitialApplicationPeriodCumulativeEffectTransitionTable_EB5942D0428FD80FA7FCE3A024581A9C" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_1F6FFC86772E2AA40F64E3A0245AF7F0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SegmentDomain" xlink:label="loc_us-gaap_SegmentDomain_6706CE66285ACFA8B04CE3A0245A1B5F_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_1F6FFC86772E2AA40F64E3A0245AF7F0" xlink:to="loc_us-gaap_SegmentDomain_6706CE66285ACFA8B04CE3A0245A1B5F_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SegmentDomain" xlink:label="loc_us-gaap_SegmentDomain_6706CE66285ACFA8B04CE3A0245A1B5F" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_1F6FFC86772E2AA40F64E3A0245AF7F0" xlink:to="loc_us-gaap_SegmentDomain_6706CE66285ACFA8B04CE3A0245A1B5F" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_AccountServicesSegmentMember" xlink:label="loc_gdot_AccountServicesSegmentMember_81F4F1458D6938781548E3A0245A134D" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_6706CE66285ACFA8B04CE3A0245A1B5F" xlink:to="loc_gdot_AccountServicesSegmentMember_81F4F1458D6938781548E3A0245A134D" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_ProcessingandSettlementServicesSegmentMember" xlink:label="loc_gdot_ProcessingandSettlementServicesSegmentMember_2BE257B29D46EC296856E3A0245B3951" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_6706CE66285ACFA8B04CE3A0245A1B5F" xlink:to="loc_gdot_ProcessingandSettlementServicesSegmentMember_2BE257B29D46EC296856E3A0245B3951" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_Revenues" xlink:label="loc_us-gaap_Revenues_2AB05CA87F63C707DDD4E3A0245B3A3F" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenueInitialApplicationPeriodCumulativeEffectTransitionLineItems_D5106BC325D1649835B2E3A0245BA04B" xlink:to="loc_us-gaap_Revenues_2AB05CA87F63C707DDD4E3A0245B3A3F" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://mygreendot.com/role/RevenuesTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/SegmentInformation" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/SegmentInformationDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SegmentReportingInformationLineItems" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_36A3A2155098C0909F7127FF93BE3E67" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable" xlink:label="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_2295187EAD8E608F1CAA27FF93BBE024" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_36A3A2155098C0909F7127FF93BE3E67" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_2295187EAD8E608F1CAA27FF93BBE024" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_ConsolidationItemsAxis" xlink:label="loc_srt_ConsolidationItemsAxis_789593FDB04E7932D3A427FF93BC4469" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_2295187EAD8E608F1CAA27FF93BBE024" xlink:to="loc_srt_ConsolidationItemsAxis_789593FDB04E7932D3A427FF93BC4469" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_ConsolidationItemsDomain" xlink:label="loc_srt_ConsolidationItemsDomain_DFD1777C21B611A41C1B27FF93BCF504_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ConsolidationItemsAxis_789593FDB04E7932D3A427FF93BC4469" xlink:to="loc_srt_ConsolidationItemsDomain_DFD1777C21B611A41C1B27FF93BCF504_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_ConsolidationItemsDomain" xlink:label="loc_srt_ConsolidationItemsDomain_DFD1777C21B611A41C1B27FF93BCF504" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ConsolidationItemsAxis_789593FDB04E7932D3A427FF93BC4469" xlink:to="loc_srt_ConsolidationItemsDomain_DFD1777C21B611A41C1B27FF93BCF504" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingSegmentsMember" xlink:label="loc_us-gaap_OperatingSegmentsMember_515E6309994ABA8F6E8B27FF93BC7225" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidationItemsDomain_DFD1777C21B611A41C1B27FF93BCF504" xlink:to="loc_us-gaap_OperatingSegmentsMember_515E6309994ABA8F6E8B27FF93BC7225" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CorporateNonSegmentMember" xlink:label="loc_us-gaap_CorporateNonSegmentMember_734EC4B92D4B9436DF4C27FF93BD0C12" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidationItemsDomain_DFD1777C21B611A41C1B27FF93BCF504" xlink:to="loc_us-gaap_CorporateNonSegmentMember_734EC4B92D4B9436DF4C27FF93BD0C12" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_93BB9D7A46E6880D6F5B27FF93BD1956" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_2295187EAD8E608F1CAA27FF93BBE024" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_93BB9D7A46E6880D6F5B27FF93BD1956" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SegmentDomain" xlink:label="loc_us-gaap_SegmentDomain_A59B384AA0FF2CFD0FC127FF93BD21E2_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_93BB9D7A46E6880D6F5B27FF93BD1956" xlink:to="loc_us-gaap_SegmentDomain_A59B384AA0FF2CFD0FC127FF93BD21E2_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SegmentDomain" xlink:label="loc_us-gaap_SegmentDomain_A59B384AA0FF2CFD0FC127FF93BD21E2" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_93BB9D7A46E6880D6F5B27FF93BD1956" xlink:to="loc_us-gaap_SegmentDomain_A59B384AA0FF2CFD0FC127FF93BD21E2" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_AccountServicesSegmentMember" xlink:label="loc_gdot_AccountServicesSegmentMember_4D6935F10D9FE96AF96527FF93BD790C" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_A59B384AA0FF2CFD0FC127FF93BD21E2" xlink:to="loc_gdot_AccountServicesSegmentMember_4D6935F10D9FE96AF96527FF93BD790C" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_ProcessingandSettlementServicesSegmentMember" xlink:label="loc_gdot_ProcessingandSettlementServicesSegmentMember_842DB5DF662218C92FAE27FF93BE37A6" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_A59B384AA0FF2CFD0FC127FF93BD21E2" xlink:to="loc_gdot_ProcessingandSettlementServicesSegmentMember_842DB5DF662218C92FAE27FF93BE37A6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NumberOfReportableSegments" xlink:label="loc_us-gaap_NumberOfReportableSegments_7781FB4BBCED6445CA3627FF93BE1C23" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_36A3A2155098C0909F7127FF93BE3E67" xlink:to="loc_us-gaap_NumberOfReportableSegments_7781FB4BBCED6445CA3627FF93BE1C23" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_Revenues" xlink:label="loc_us-gaap_Revenues_3B866879206DD02A6D2B27FF93BE309E" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_36A3A2155098C0909F7127FF93BE3E67" xlink:to="loc_us-gaap_Revenues_3B866879206DD02A6D2B27FF93BE309E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingExpenses" xlink:label="loc_us-gaap_OperatingExpenses_35FED92327ED54E38A6E27FF93BEFCBB" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_36A3A2155098C0909F7127FF93BE3E67" xlink:to="loc_us-gaap_OperatingExpenses_35FED92327ED54E38A6E27FF93BEFCBB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="loc_us-gaap_OperatingIncomeLoss_3395BD5FF882A0B5B08327FF93BF92D2" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_36A3A2155098C0909F7127FF93BE3E67" xlink:to="loc_us-gaap_OperatingIncomeLoss_3395BD5FF882A0B5B08327FF93BF92D2" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://mygreendot.com/role/SegmentInformationTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/SelectedUnauditedQuarterlyFinancialInformation" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/SelectedUnauditedQuarterlyFinancialInformationDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_CondensedFinancialStatementsCaptionsLineItems" xlink:label="loc_srt_CondensedFinancialStatementsCaptionsLineItems_36F2C4A24085EF6261A227FF93CDEDC6" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_ScheduleOfCondensedFinancialStatementsTable" xlink:label="loc_srt_ScheduleOfCondensedFinancialStatementsTable_054B193C37F55A34ED9B27FF93CCE156" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_srt_CondensedFinancialStatementsCaptionsLineItems_36F2C4A24085EF6261A227FF93CDEDC6" xlink:to="loc_srt_ScheduleOfCondensedFinancialStatementsTable_054B193C37F55A34ED9B27FF93CCE156" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis_43B115A00FB5C93272A827FF93CC00A9" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_srt_ScheduleOfCondensedFinancialStatementsTable_054B193C37F55A34ED9B27FF93CCE156" xlink:to="loc_us-gaap_StatementClassOfStockAxis_43B115A00FB5C93272A827FF93CC00A9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_CF96502B88D151F783AC27FF93CC6245_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_43B115A00FB5C93272A827FF93CC00A9" xlink:to="loc_us-gaap_ClassOfStockDomain_CF96502B88D151F783AC27FF93CC6245_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_CF96502B88D151F783AC27FF93CC6245" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_43B115A00FB5C93272A827FF93CC00A9" xlink:to="loc_us-gaap_ClassOfStockDomain_CF96502B88D151F783AC27FF93CC6245" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonClassAMember" xlink:label="loc_us-gaap_CommonClassAMember_66A61B1C76C28B371C6227FF93CDDD26" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_CF96502B88D151F783AC27FF93CC6245" xlink:to="loc_us-gaap_CommonClassAMember_66A61B1C76C28B371C6227FF93CDDD26" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_Revenues" xlink:label="loc_us-gaap_Revenues_628AF57E288ACFC51AA927FF93CDDBDC" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_CondensedFinancialStatementsCaptionsLineItems_36F2C4A24085EF6261A227FF93CDEDC6" xlink:to="loc_us-gaap_Revenues_628AF57E288ACFC51AA927FF93CDDBDC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingExpenses" xlink:label="loc_us-gaap_OperatingExpenses_8B23B6C4935D0BAF88CE27FF93CE8658" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_CondensedFinancialStatementsCaptionsLineItems_36F2C4A24085EF6261A227FF93CDEDC6" xlink:to="loc_us-gaap_OperatingExpenses_8B23B6C4935D0BAF88CE27FF93CE8658" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="loc_us-gaap_OperatingIncomeLoss_916898D81AA1DF032B5027FF93CEAFF1" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_CondensedFinancialStatementsCaptionsLineItems_36F2C4A24085EF6261A227FF93CDEDC6" xlink:to="loc_us-gaap_OperatingIncomeLoss_916898D81AA1DF032B5027FF93CEAFF1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InterestIncomeExpenseNet" xlink:label="loc_us-gaap_InterestIncomeExpenseNet_CAB5F1A27E81F29A9CD627FF93CE0828" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_CondensedFinancialStatementsCaptionsLineItems_36F2C4A24085EF6261A227FF93CDEDC6" xlink:to="loc_us-gaap_InterestIncomeExpenseNet_CAB5F1A27E81F29A9CD627FF93CE0828" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic_9820F9F21C56EAF673E627FF93CE2B1C" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_CondensedFinancialStatementsCaptionsLineItems_36F2C4A24085EF6261A227FF93CDEDC6" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic_9820F9F21C56EAF673E627FF93CE2B1C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_81DEA60B5B57E9C5DB1727FF93CEBAEE" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_CondensedFinancialStatementsCaptionsLineItems_36F2C4A24085EF6261A227FF93CDEDC6" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_81DEA60B5B57E9C5DB1727FF93CEBAEE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_D694E01801CFFADC896B27FF93CEA8D7" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_CondensedFinancialStatementsCaptionsLineItems_36F2C4A24085EF6261A227FF93CDEDC6" xlink:to="loc_us-gaap_NetIncomeLoss_D694E01801CFFADC896B27FF93CEA8D7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EarningsPerShareBasicUndistributed" xlink:label="loc_us-gaap_EarningsPerShareBasicUndistributed_9ABE5CA9AFFA8A18689B27FF93CF0F8E" xlink:type="locator" />
    <link:definitionArc order="8" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_CondensedFinancialStatementsCaptionsLineItems_36F2C4A24085EF6261A227FF93CDEDC6" xlink:to="loc_us-gaap_EarningsPerShareBasicUndistributed_9ABE5CA9AFFA8A18689B27FF93CF0F8E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EarningsPerShareDilutedUndistributed" xlink:label="loc_us-gaap_EarningsPerShareDilutedUndistributed_5E2318B0A1174CA53ADA27FF93CFF45C" xlink:type="locator" />
    <link:definitionArc order="9" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_CondensedFinancialStatementsCaptionsLineItems_36F2C4A24085EF6261A227FF93CDEDC6" xlink:to="loc_us-gaap_EarningsPerShareDilutedUndistributed_5E2318B0A1174CA53ADA27FF93CFF45C" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://mygreendot.com/role/SelectedUnauditedQuarterlyFinancialInformationTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/SignificantCustomerConcentration" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/SignificantCustomerConcentrationDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConcentrationRiskLineItems" xlink:label="loc_us-gaap_ConcentrationRiskLineItems_384A3989D5B4C80AE0EB27FF93EEF3F1" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConcentrationRiskTable" xlink:label="loc_us-gaap_ConcentrationRiskTable_44B02BC13178ACA60EF227FF93EB1371" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ConcentrationRiskLineItems_384A3989D5B4C80AE0EB27FF93EEF3F1" xlink:to="loc_us-gaap_ConcentrationRiskTable_44B02BC13178ACA60EF227FF93EB1371" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_MajorCustomersAxis" xlink:label="loc_srt_MajorCustomersAxis_958A651138D617A2A7F127FF93EBB2E3" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ConcentrationRiskTable_44B02BC13178ACA60EF227FF93EB1371" xlink:to="loc_srt_MajorCustomersAxis_958A651138D617A2A7F127FF93EBB2E3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_NameOfMajorCustomerDomain" xlink:label="loc_srt_NameOfMajorCustomerDomain_8DF39500C2FD19FB468327FF93EBC28B_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_MajorCustomersAxis_958A651138D617A2A7F127FF93EBB2E3" xlink:to="loc_srt_NameOfMajorCustomerDomain_8DF39500C2FD19FB468327FF93EBC28B_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_NameOfMajorCustomerDomain" xlink:label="loc_srt_NameOfMajorCustomerDomain_8DF39500C2FD19FB468327FF93EBC28B" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_MajorCustomersAxis_958A651138D617A2A7F127FF93EBB2E3" xlink:to="loc_srt_NameOfMajorCustomerDomain_8DF39500C2FD19FB468327FF93EBC28B" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_WalmartMember" xlink:label="loc_gdot_WalmartMember_1FE96A7B3741E1689A3E27FF93EB7ED7" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_NameOfMajorCustomerDomain_8DF39500C2FD19FB468327FF93EBC28B" xlink:to="loc_gdot_WalmartMember_1FE96A7B3741E1689A3E27FF93EB7ED7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConcentrationRiskByTypeAxis" xlink:label="loc_us-gaap_ConcentrationRiskByTypeAxis_BDEE55AD17874847870927FF93ECA540" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ConcentrationRiskTable_44B02BC13178ACA60EF227FF93EB1371" xlink:to="loc_us-gaap_ConcentrationRiskByTypeAxis_BDEE55AD17874847870927FF93ECA540" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConcentrationRiskTypeDomain" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_11D60FF340DAD96E144C27FF93EC6842_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_BDEE55AD17874847870927FF93ECA540" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_11D60FF340DAD96E144C27FF93EC6842_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConcentrationRiskTypeDomain" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_11D60FF340DAD96E144C27FF93EC6842" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_BDEE55AD17874847870927FF93ECA540" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_11D60FF340DAD96E144C27FF93EC6842" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CustomerConcentrationRiskMember" xlink:label="loc_us-gaap_CustomerConcentrationRiskMember_50C815E9671084B1101D27FF93EC73AD" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskTypeDomain_11D60FF340DAD96E144C27FF93EC6842" xlink:to="loc_us-gaap_CustomerConcentrationRiskMember_50C815E9671084B1101D27FF93EC73AD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConcentrationRiskByBenchmarkAxis" xlink:label="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_273CA1D7085C98B49AF227FF93ED6ED6" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ConcentrationRiskTable_44B02BC13178ACA60EF227FF93EB1371" xlink:to="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_273CA1D7085C98B49AF227FF93ED6ED6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConcentrationRiskBenchmarkDomain" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_1058E2038ACDC274971727FF93ED0950_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_273CA1D7085C98B49AF227FF93ED6ED6" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_1058E2038ACDC274971727FF93ED0950_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConcentrationRiskBenchmarkDomain" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_1058E2038ACDC274971727FF93ED0950" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_273CA1D7085C98B49AF227FF93ED6ED6" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_1058E2038ACDC274971727FF93ED0950" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccountsReceivableMember" xlink:label="loc_us-gaap_AccountsReceivableMember_79B9ECEB5713F4197EA727FF93EDEA0A" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_1058E2038ACDC274971727FF93ED0950" xlink:to="loc_us-gaap_AccountsReceivableMember_79B9ECEB5713F4197EA727FF93EDEA0A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SalesRevenueNetMember" xlink:label="loc_us-gaap_SalesRevenueNetMember_3EA8C0458F1FA64B72B227FF93ED90E1" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_1058E2038ACDC274971727FF93ED0950" xlink:to="loc_us-gaap_SalesRevenueNetMember_3EA8C0458F1FA64B72B227FF93ED90E1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConcentrationRiskPercentage1" xlink:label="loc_us-gaap_ConcentrationRiskPercentage1_D4D781B8C903154C42AB27FF93EE2CC5" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskLineItems_384A3989D5B4C80AE0EB27FF93EEF3F1" xlink:to="loc_us-gaap_ConcentrationRiskPercentage1_D4D781B8C903154C42AB27FF93EE2CC5" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://mygreendot.com/role/SignificantCustomerConcentrationTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/StockholdersEquity" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/StockholdersEquityNarrativeDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ClassOfStockLineItems" xlink:label="loc_us-gaap_ClassOfStockLineItems_0BDC95924B60755BF2FADEAC1AACEB86" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfStockByClassTable" xlink:label="loc_us-gaap_ScheduleOfStockByClassTable_8F52177835685D35FC8BDEAC1AA77778" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ClassOfStockLineItems_0BDC95924B60755BF2FADEAC1AACEB86" xlink:to="loc_us-gaap_ScheduleOfStockByClassTable_8F52177835685D35FC8BDEAC1AA77778" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis_FCB59B1542915A7920A0DEAC1AA76033" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_8F52177835685D35FC8BDEAC1AA77778" xlink:to="loc_us-gaap_StatementClassOfStockAxis_FCB59B1542915A7920A0DEAC1AA76033" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_3104877C8A84D0B59B34DEAC1AA70ED6_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_FCB59B1542915A7920A0DEAC1AA76033" xlink:to="loc_us-gaap_ClassOfStockDomain_3104877C8A84D0B59B34DEAC1AA70ED6_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_3104877C8A84D0B59B34DEAC1AA70ED6" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_FCB59B1542915A7920A0DEAC1AA76033" xlink:to="loc_us-gaap_ClassOfStockDomain_3104877C8A84D0B59B34DEAC1AA70ED6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonClassBMember" xlink:label="loc_us-gaap_CommonClassBMember_8D04C95B6EEA848B824CDEAC1AA8A3A9" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_3104877C8A84D0B59B34DEAC1AA70ED6" xlink:to="loc_us-gaap_CommonClassBMember_8D04C95B6EEA848B824CDEAC1AA8A3A9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NonredeemableConvertiblePreferredStockMember" xlink:label="loc_us-gaap_NonredeemableConvertiblePreferredStockMember_F245A914ABFF7A382998DEAC1AA8AC41" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_3104877C8A84D0B59B34DEAC1AA70ED6" xlink:to="loc_us-gaap_NonredeemableConvertiblePreferredStockMember_F245A914ABFF7A382998DEAC1AA8AC41" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonClassAMember" xlink:label="loc_us-gaap_CommonClassAMember_87787E5F02FF5FD09093DEAC1AA82FBE" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_3104877C8A84D0B59B34DEAC1AA70ED6" xlink:to="loc_us-gaap_CommonClassAMember_87787E5F02FF5FD09093DEAC1AA82FBE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareRepurchaseProgramAxis" xlink:label="loc_us-gaap_ShareRepurchaseProgramAxis_4F5B9CDDB6E26951D5AEDEAC1AA979C1" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_8F52177835685D35FC8BDEAC1AA77778" xlink:to="loc_us-gaap_ShareRepurchaseProgramAxis_4F5B9CDDB6E26951D5AEDEAC1AA979C1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareRepurchaseProgramDomain" xlink:label="loc_us-gaap_ShareRepurchaseProgramDomain_A699A49E8405D7E7E7E3DEAC1AA97CCA_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ShareRepurchaseProgramAxis_4F5B9CDDB6E26951D5AEDEAC1AA979C1" xlink:to="loc_us-gaap_ShareRepurchaseProgramDomain_A699A49E8405D7E7E7E3DEAC1AA97CCA_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareRepurchaseProgramDomain" xlink:label="loc_us-gaap_ShareRepurchaseProgramDomain_A699A49E8405D7E7E7E3DEAC1AA97CCA" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ShareRepurchaseProgramAxis_4F5B9CDDB6E26951D5AEDEAC1AA979C1" xlink:to="loc_us-gaap_ShareRepurchaseProgramDomain_A699A49E8405D7E7E7E3DEAC1AA97CCA" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_December2015RepurchasePlanMember" xlink:label="loc_gdot_December2015RepurchasePlanMember_1597EF216DC19C4C02A8DEAC1AAA0990" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareRepurchaseProgramDomain_A699A49E8405D7E7E7E3DEAC1AA97CCA" xlink:to="loc_gdot_December2015RepurchasePlanMember_1597EF216DC19C4C02A8DEAC1AAA0990" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PreferredStockSharesAuthorized" xlink:label="loc_us-gaap_PreferredStockSharesAuthorized_0ADE2C05F39A5D341E5CDEAC1AAC6333" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_0BDC95924B60755BF2FADEAC1AACEB86" xlink:to="loc_us-gaap_PreferredStockSharesAuthorized_0ADE2C05F39A5D341E5CDEAC1AAC6333" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_ConversionOfStockSharesConvertedClassBToSeriesPreferred" xlink:label="loc_gdot_ConversionOfStockSharesConvertedClassBToSeriesPreferred_0A57EE99B8A5298998D9DEAC1AAC1B31" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_0BDC95924B60755BF2FADEAC1AACEB86" xlink:to="loc_gdot_ConversionOfStockSharesConvertedClassBToSeriesPreferred_0A57EE99B8A5298998D9DEAC1AAC1B31" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PreferredStockSharesIssued" xlink:label="loc_us-gaap_PreferredStockSharesIssued_ED300543438752DFFD3DDEAC1AADCE7E" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_0BDC95924B60755BF2FADEAC1AACEB86" xlink:to="loc_us-gaap_PreferredStockSharesIssued_ED300543438752DFFD3DDEAC1AADCE7E" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_CommonStockVotingRightsVotePerShare" xlink:label="loc_gdot_CommonStockVotingRightsVotePerShare_2B4F52920B76F99E5AF0DEAC1AAD1756" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_0BDC95924B60755BF2FADEAC1AACEB86" xlink:to="loc_gdot_CommonStockVotingRightsVotePerShare_2B4F52920B76F99E5AF0DEAC1AAD1756" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_VotingThreshold" xlink:label="loc_gdot_VotingThreshold_297E99AD7B1911042188DEAC1AAD6346" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_0BDC95924B60755BF2FADEAC1AACEB86" xlink:to="loc_gdot_VotingThreshold_297E99AD7B1911042188DEAC1AAD6346" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_ReducedVotingPower" xlink:label="loc_gdot_ReducedVotingPower_841BA6511607FCD624ECDEAC1AADED4B" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_0BDC95924B60755BF2FADEAC1AACEB86" xlink:to="loc_gdot_ReducedVotingPower_841BA6511607FCD624ECDEAC1AADED4B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax_39287FD5F6D6BD4162D0DEAC1AB03B57" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_0BDC95924B60755BF2FADEAC1AACEB86" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax_39287FD5F6D6BD4162D0DEAC1AB03B57" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockRepurchaseProgramAuthorizedAmount1" xlink:label="loc_us-gaap_StockRepurchaseProgramAuthorizedAmount1_48DFF1E1C41263D03FACDEAC1AB0F3C9" xlink:type="locator" />
    <link:definitionArc order="8" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_0BDC95924B60755BF2FADEAC1AACEB86" xlink:to="loc_us-gaap_StockRepurchaseProgramAuthorizedAmount1_48DFF1E1C41263D03FACDEAC1AB0F3C9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TreasuryStockValue" xlink:label="loc_us-gaap_TreasuryStockValue_4F4FC1C4F37CC72E498ADF8D4EBE725B" xlink:type="locator" />
    <link:definitionArc order="9" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_0BDC95924B60755BF2FADEAC1AACEB86" xlink:to="loc_us-gaap_TreasuryStockValue_4F4FC1C4F37CC72E498ADF8D4EBE725B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_E84D22D6D2FE1B7E2ABADEAC1AB0865C" xlink:type="locator" />
    <link:definitionArc order="10" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_0BDC95924B60755BF2FADEAC1AACEB86" xlink:to="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_E84D22D6D2FE1B7E2ABADEAC1AB0865C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockRepurchasedDuringPeriodValue" xlink:label="loc_us-gaap_StockRepurchasedDuringPeriodValue_01AC4BA9036EA5BED978DEAC1AB02687" xlink:type="locator" />
    <link:definitionArc order="11" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_0BDC95924B60755BF2FADEAC1AACEB86" xlink:to="loc_us-gaap_StockRepurchasedDuringPeriodValue_01AC4BA9036EA5BED978DEAC1AB02687" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_StockRepurchasedDuringPeriodAverageCostperShare" xlink:label="loc_gdot_StockRepurchasedDuringPeriodAverageCostperShare_25423B4FE2C723607FE0DEAC1AB1FB9D" xlink:type="locator" />
    <link:definitionArc order="12" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_0BDC95924B60755BF2FADEAC1AACEB86" xlink:to="loc_gdot_StockRepurchasedDuringPeriodAverageCostperShare_25423B4FE2C723607FE0DEAC1AB1FB9D" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://mygreendot.com/role/StockholdersEquityTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/StockholdersEquityTreasuryStockDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EquityClassOfTreasuryStockLineItems" xlink:label="loc_us-gaap_EquityClassOfTreasuryStockLineItems_10128133C8A73EDC6E0327FF94CE5DEC" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ClassOfTreasuryStockTable" xlink:label="loc_us-gaap_ClassOfTreasuryStockTable_2A1460540F13360AA13027FF94CC1951" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_EquityClassOfTreasuryStockLineItems_10128133C8A73EDC6E0327FF94CE5DEC" xlink:to="loc_us-gaap_ClassOfTreasuryStockTable_2A1460540F13360AA13027FF94CC1951" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareRepurchaseProgramAxis" xlink:label="loc_us-gaap_ShareRepurchaseProgramAxis_F133875938F0A8A7584127FF94CCDDCE" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ClassOfTreasuryStockTable_2A1460540F13360AA13027FF94CC1951" xlink:to="loc_us-gaap_ShareRepurchaseProgramAxis_F133875938F0A8A7584127FF94CCDDCE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareRepurchaseProgramDomain" xlink:label="loc_us-gaap_ShareRepurchaseProgramDomain_12F816C43A48D436FFF727FF94CDBB6D_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ShareRepurchaseProgramAxis_F133875938F0A8A7584127FF94CCDDCE" xlink:to="loc_us-gaap_ShareRepurchaseProgramDomain_12F816C43A48D436FFF727FF94CDBB6D_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareRepurchaseProgramDomain" xlink:label="loc_us-gaap_ShareRepurchaseProgramDomain_12F816C43A48D436FFF727FF94CDBB6D" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ShareRepurchaseProgramAxis_F133875938F0A8A7584127FF94CCDDCE" xlink:to="loc_us-gaap_ShareRepurchaseProgramDomain_12F816C43A48D436FFF727FF94CDBB6D" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_March2017ASRMember" xlink:label="loc_gdot_March2017ASRMember_ED79FD0EBF11E3321ACD27FF94CD5427" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareRepurchaseProgramDomain_12F816C43A48D436FFF727FF94CDBB6D" xlink:to="loc_gdot_March2017ASRMember_ED79FD0EBF11E3321ACD27FF94CD5427" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_April2016ASRMember" xlink:label="loc_gdot_April2016ASRMember_348313AFD294AEAEFEAC27FF94CDDCF6" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareRepurchaseProgramDomain_12F816C43A48D436FFF727FF94CDBB6D" xlink:to="loc_gdot_April2016ASRMember_348313AFD294AEAEFEAC27FF94CDDCF6" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_September2015ASRMember" xlink:label="loc_gdot_September2015ASRMember_6E6AF1520787B3F6EC9B27FF94CDE56C" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareRepurchaseProgramDomain_12F816C43A48D436FFF727FF94CDBB6D" xlink:to="loc_gdot_September2015ASRMember_6E6AF1520787B3F6EC9B27FF94CDE56C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis_41686BA8CA1F4A710D8927FF94CE0DF6" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ClassOfTreasuryStockTable_2A1460540F13360AA13027FF94CC1951" xlink:to="loc_us-gaap_StatementClassOfStockAxis_41686BA8CA1F4A710D8927FF94CE0DF6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_828505B11086AE7C105E27FF94CE5604_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_41686BA8CA1F4A710D8927FF94CE0DF6" xlink:to="loc_us-gaap_ClassOfStockDomain_828505B11086AE7C105E27FF94CE5604_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_828505B11086AE7C105E27FF94CE5604" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_41686BA8CA1F4A710D8927FF94CE0DF6" xlink:to="loc_us-gaap_ClassOfStockDomain_828505B11086AE7C105E27FF94CE5604" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonClassAMember" xlink:label="loc_us-gaap_CommonClassAMember_49FD87DF5988EE1965E127FF94CE4B22" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_828505B11086AE7C105E27FF94CE5604" xlink:to="loc_us-gaap_CommonClassAMember_49FD87DF5988EE1965E127FF94CE4B22" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TreasuryStockSharesAcquired" xlink:label="loc_us-gaap_TreasuryStockSharesAcquired_7266C0C2523EEB69755127FF94CFC6D0" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityClassOfTreasuryStockLineItems_10128133C8A73EDC6E0327FF94CE5DEC" xlink:to="loc_us-gaap_TreasuryStockSharesAcquired_7266C0C2523EEB69755127FF94CFC6D0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TreasuryStockAcquiredAverageCostPerShare" xlink:label="loc_us-gaap_TreasuryStockAcquiredAverageCostPerShare_D7171B381B54CA1FD8BE27FF94CF32C9" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityClassOfTreasuryStockLineItems_10128133C8A73EDC6E0327FF94CE5DEC" xlink:to="loc_us-gaap_TreasuryStockAcquiredAverageCostPerShare_D7171B381B54CA1FD8BE27FF94CF32C9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TreasuryStockValue" xlink:label="loc_us-gaap_TreasuryStockValue_2AEA02EEE4B22A516B1027FF94CFB8BE" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityClassOfTreasuryStockLineItems_10128133C8A73EDC6E0327FF94CE5DEC" xlink:to="loc_us-gaap_TreasuryStockValue_2AEA02EEE4B22A516B1027FF94CFB8BE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AcceleratedShareRepurchasesSettlementPaymentOrReceipt" xlink:label="loc_us-gaap_AcceleratedShareRepurchasesSettlementPaymentOrReceipt_7E88958EA7472E8E227727FF94CF0B6B" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityClassOfTreasuryStockLineItems_10128133C8A73EDC6E0327FF94CE5DEC" xlink:to="loc_us-gaap_AcceleratedShareRepurchasesSettlementPaymentOrReceipt_7E88958EA7472E8E227727FF94CF0B6B" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://mygreendot.com/role/SummaryOfSignificantAccountingPolicies" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/SummaryOfSignificantAccountingPoliciesEstimatedUsefulLivesDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_1E4CE9BA7E0BD9485ECDE34A5DF01704" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_11F0D30F8DE3C7407634E34A5DE901DA" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_1E4CE9BA7E0BD9485ECDE34A5DF01704" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_11F0D30F8DE3C7407634E34A5DE901DA" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_72C3F7878248E43D812BE3621293E4FD" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_11F0D30F8DE3C7407634E34A5DE901DA" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_72C3F7878248E43D812BE3621293E4FD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_912D14C6E99DE687C04DE362129874C1_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_72C3F7878248E43D812BE3621293E4FD" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_912D14C6E99DE687C04DE362129874C1_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_912D14C6E99DE687C04DE362129874C1" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_72C3F7878248E43D812BE3621293E4FD" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_912D14C6E99DE687C04DE362129874C1" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_CustomerRelationshipsandTradeNamesMember" xlink:label="loc_gdot_CustomerRelationshipsandTradeNamesMember_7E03FAC0CC6F6765A4AAE36212F4D9A7" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_912D14C6E99DE687C04DE362129874C1" xlink:to="loc_gdot_CustomerRelationshipsandTradeNamesMember_7E03FAC0CC6F6765A4AAE36212F4D9A7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_528E9E721ECBC7FE0E0CE34A5DEACECE" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_11F0D30F8DE3C7407634E34A5DE901DA" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_528E9E721ECBC7FE0E0CE34A5DEACECE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_706EB0BD5D42551A68F5E34A5DEA4037_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_528E9E721ECBC7FE0E0CE34A5DEACECE" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_706EB0BD5D42551A68F5E34A5DEA4037_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_706EB0BD5D42551A68F5E34A5DEA4037" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_528E9E721ECBC7FE0E0CE34A5DEACECE" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_706EB0BD5D42551A68F5E34A5DEA4037" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_BuildingMember" xlink:label="loc_us-gaap_BuildingMember_50B5FFB8D97649A02AF7E34A5DEABFE1" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_706EB0BD5D42551A68F5E34A5DEA4037" xlink:to="loc_us-gaap_BuildingMember_50B5FFB8D97649A02AF7E34A5DEABFE1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_MachineryAndEquipmentMember" xlink:label="loc_us-gaap_MachineryAndEquipmentMember_2E8829B33FC99CC33951E34A5DEE7490" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_706EB0BD5D42551A68F5E34A5DEA4037" xlink:to="loc_us-gaap_MachineryAndEquipmentMember_2E8829B33FC99CC33951E34A5DEE7490" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SoftwareAndSoftwareDevelopmentCostsMember" xlink:label="loc_us-gaap_SoftwareAndSoftwareDevelopmentCostsMember_F8E228F3B4095C7E9AA9E34A5DEEB38B" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_706EB0BD5D42551A68F5E34A5DEA4037" xlink:to="loc_us-gaap_SoftwareAndSoftwareDevelopmentCostsMember_F8E228F3B4095C7E9AA9E34A5DEEB38B" xlink:type="arc" />
    <link:loc xlink:href="gdot-20181231.xsd#gdot_CapitalizedInternalUseSoftwareMember" xlink:label="loc_gdot_CapitalizedInternalUseSoftwareMember_7D0FCBFEBF7722B2B1D7E34A5DEF6BC5" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_706EB0BD5D42551A68F5E34A5DEA4037" xlink:to="loc_gdot_CapitalizedInternalUseSoftwareMember_7D0FCBFEBF7722B2B1D7E34A5DEF6BC5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_RangeAxis" xlink:label="loc_srt_RangeAxis_E84E89F5602ACA53AEBAE34A5DEFE6D1" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_11F0D30F8DE3C7407634E34A5DE901DA" xlink:to="loc_srt_RangeAxis_E84E89F5602ACA53AEBAE34A5DEFE6D1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_RangeMember" xlink:label="loc_srt_RangeMember_A0BC14F580614586A555E34A5DEF215E_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_E84E89F5602ACA53AEBAE34A5DEFE6D1" xlink:to="loc_srt_RangeMember_A0BC14F580614586A555E34A5DEF215E_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_RangeMember" xlink:label="loc_srt_RangeMember_A0BC14F580614586A555E34A5DEF215E" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_E84E89F5602ACA53AEBAE34A5DEFE6D1" xlink:to="loc_srt_RangeMember_A0BC14F580614586A555E34A5DEF215E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_MinimumMember" xlink:label="loc_srt_MinimumMember_21AE8475EBB1460E1C34E34A5DEFB915" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_A0BC14F580614586A555E34A5DEF215E" xlink:to="loc_srt_MinimumMember_21AE8475EBB1460E1C34E34A5DEFB915" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_MaximumMember" xlink:label="loc_srt_MaximumMember_68A631D55144E89BF642E34A5DF0B681" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_A0BC14F580614586A555E34A5DEF215E" xlink:to="loc_srt_MaximumMember_68A631D55144E89BF642E34A5DF0B681" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentUsefulLife" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_0936B812B9A60B2BECFCE34A5DF0A115" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_1E4CE9BA7E0BD9485ECDE34A5DF01704" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_0936B812B9A60B2BECFCE34A5DF0A115" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetUsefulLife" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_2DF2F2E7955FCEC1510AE36211E04A28" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_1E4CE9BA7E0BD9485ECDE34A5DF01704" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_2DF2F2E7955FCEC1510AE36211E04A28" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://mygreendot.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ItemEffectedLineItems" xlink:label="loc_us-gaap_ItemEffectedLineItems_D75117BA51887A74D5CA253E189A36A0" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProspectiveAdoptionOfNewAccountingPronouncementsTable" xlink:label="loc_us-gaap_ProspectiveAdoptionOfNewAccountingPronouncementsTable_E67623CC338FBD84DE94253E18981D0F" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ItemEffectedLineItems_D75117BA51887A74D5CA253E189A36A0" xlink:to="loc_us-gaap_ProspectiveAdoptionOfNewAccountingPronouncementsTable_E67623CC338FBD84DE94253E18981D0F" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_83A9BD2C08E395DA7327253E1898303E" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ProspectiveAdoptionOfNewAccountingPronouncementsTable_E67623CC338FBD84DE94253E18981D0F" xlink:to="loc_us-gaap_StatementScenarioAxis_83A9BD2C08E395DA7327253E1898303E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_510E12162C42709189CA253E1899FEEE_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementScenarioAxis_83A9BD2C08E395DA7327253E1898303E" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_510E12162C42709189CA253E1899FEEE_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_510E12162C42709189CA253E1899FEEE" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementScenarioAxis_83A9BD2C08E395DA7327253E1898303E" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_510E12162C42709189CA253E1899FEEE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScenarioForecastMember" xlink:label="loc_us-gaap_ScenarioForecastMember_37CC63256C7340FDEE53253E18997638" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScenarioUnspecifiedDomain_510E12162C42709189CA253E1899FEEE" xlink:to="loc_us-gaap_ScenarioForecastMember_37CC63256C7340FDEE53253E18997638" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AdjustmentsForNewAccountingPronouncementsAxis" xlink:label="loc_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_73A4B7108AE4CEA874E5253E18993042" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ProspectiveAdoptionOfNewAccountingPronouncementsTable_E67623CC338FBD84DE94253E18981D0F" xlink:to="loc_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_73A4B7108AE4CEA874E5253E18993042" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TypeOfAdoptionMember" xlink:label="loc_us-gaap_TypeOfAdoptionMember_39B80024A19B10917C5A253E1899E89A_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_73A4B7108AE4CEA874E5253E18993042" xlink:to="loc_us-gaap_TypeOfAdoptionMember_39B80024A19B10917C5A253E1899E89A_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TypeOfAdoptionMember" xlink:label="loc_us-gaap_TypeOfAdoptionMember_39B80024A19B10917C5A253E1899E89A" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_73A4B7108AE4CEA874E5253E18993042" xlink:to="loc_us-gaap_TypeOfAdoptionMember_39B80024A19B10917C5A253E1899E89A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccountingStandardsUpdate201602Member" xlink:label="loc_us-gaap_AccountingStandardsUpdate201602Member_38EDD6C3DC9507C78177253E189A58D2" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TypeOfAdoptionMember_39B80024A19B10917C5A253E1899E89A" xlink:to="loc_us-gaap_AccountingStandardsUpdate201602Member_38EDD6C3DC9507C78177253E189A58D2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLeaseRightOfUseAsset" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_FB1A8BF115DA666024F5253E189A4FD4" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ItemEffectedLineItems_D75117BA51887A74D5CA253E189A36A0" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAsset_FB1A8BF115DA666024F5253E189A4FD4" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://mygreendot.com/role/SummaryOfSignificantAccountingPoliciesPolicies" xlink:type="extended" />
  <link:definitionLink xlink:role="http://mygreendot.com/role/SummaryOfSignificantAccountingPoliciesTables" xlink:type="extended" />
</link:linkbase>
