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  <xs:element id="caci_DatalynxAndARKAMember" abstract="true" name="DatalynxAndARKAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="caci_FiscalTwoThousandTwentyFiveAcquisitionMember" abstract="true" name="FiscalTwoThousandTwentyFiveAcquisitionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="caci_FiscalTwoThousandTwentyFourAcquisitionMember" abstract="true" name="FiscalTwoThousandTwentyFourAcquisitionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="caci_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentReceivables" abstract="false" name="BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentReceivables" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="caci_BusinessCombinationCommitmentLetterAmount" abstract="false" name="BusinessCombinationCommitmentLetterAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="caci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredOperatingLeaseRightOfUseAssets" abstract="false" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredOperatingLeaseRightOfUseAssets" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="caci_BusinessCombinationRecognizedLiabilityAssumedAccruedCompensationAndBenefits" abstract="false" name="BusinessCombinationRecognizedLiabilityAssumedAccruedCompensationAndBenefits" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="caci_BusinessCombinationRecognizedLiabilityAssumedOtherLiabilitiesAndAccruedExpensesCurrent" abstract="false" name="BusinessCombinationRecognizedLiabilityAssumedOtherLiabilitiesAndAccruedExpensesCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="caci_DomesticSegmentMember" abstract="true" name="DomesticSegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="caci_InternationalSegmentMember" abstract="true" name="InternationalSegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="caci_IntangibleAssetFiniteLivedFullyAmortizedAmount" abstract="false" name="IntangibleAssetFiniteLivedFullyAmortizedAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="caci_CustomerContractsAndRelatedCustomerRelationshipsMember" abstract="true" name="CustomerContractsAndRelatedCustomerRelationshipsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="caci_CostPlusFeeContractMember" abstract="true" name="CostPlusFeeContractMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="caci_DepartmentOfDefenseMember" abstract="true" name="DepartmentOfDefenseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="caci_IntelligenceCommunityMember" abstract="true" name="IntelligenceCommunityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="caci_FederalCivilianAgenciesMember" abstract="true" name="FederalCivilianAgenciesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="caci_CommercialAndOtherMember" abstract="true" name="CommercialAndOtherMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="caci_PrimeContractorMember" abstract="true" name="PrimeContractorMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="caci_SubcontractorMember" abstract="true" name="SubcontractorMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="caci_RevenueRemainingPerformanceObligationPercentagePeriodsOneAndTwo" abstract="false" name="RevenueRemainingPerformanceObligationPercentagePeriodsOneAndTwo" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="caci_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriodsOneAndTwo" abstract="false" name="RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriodsOneAndTwo" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="caci_BilledAndBillableReceivables" abstract="false" name="BilledAndBillableReceivables" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="caci_TransferOfFinancialAssetsAccountedForAsSalesAbstract" abstract="true" name="TransferOfFinancialAssetsAccountedForAsSalesAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="caci_TransfersOfFinancialAssetsAccountedForAsSalesMarpaMaximumCommitment" abstract="false" name="TransfersOfFinancialAssetsAccountedForAsSalesMarpaMaximumCommitment" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="caci_TransferOfFinancialAssetsAccountedForAsSalesRollForward" abstract="true" name="TransferOfFinancialAssetsAccountedForAsSalesRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="caci_TransferOfFinancialAssetsAccountedForAsSalesAmountOutstanding" abstract="false" name="TransferOfFinancialAssetsAccountedForAsSalesAmountOutstanding" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="caci_TransferOfFinancialAssetsAccountedForAsSalesSaleOfReceivables" abstract="false" name="TransferOfFinancialAssetsAccountedForAsSalesSaleOfReceivables" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="caci_TransfersOfFinancialAssetsAccountedForAsSalesCashCollected" abstract="false" name="TransfersOfFinancialAssetsAccountedForAsSalesCashCollected" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="caci_TransfersOfFinancialAssetsAccountedForAsSalesCashCollectedNotRemittedToPurchaser" abstract="false" name="TransfersOfFinancialAssetsAccountedForAsSalesCashCollectedNotRemittedToPurchaser" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="caci_TransferOfFinancialAssetsAccountedForAsSalesRemainingSoldReceivables" abstract="false" name="TransferOfFinancialAssetsAccountedForAsSalesRemainingSoldReceivables" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="caci_CashProvidedByUsedFromMARPA" abstract="false" name="CashProvidedByUsedFromMARPA" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="caci_EquipmentAndFurnitureGross" abstract="false" name="EquipmentAndFurnitureGross" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="caci_LandBuildingsAndImprovementsGross" abstract="false" name="LandBuildingsAndImprovementsGross" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="caci_ShortTermAndVariableLeaseCost" abstract="false" name="ShortTermAndVariableLeaseCost" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="caci_BankCreditFacilityMember" abstract="true" name="BankCreditFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="caci_TermLoanBMember" abstract="true" name="TermLoanBMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="caci_TermLoanB2Member" abstract="true" name="TermLoanB2Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="caci_A2033SeniorUnsecuredNotesMember" abstract="true" name="A2033SeniorUnsecuredNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="caci_A2033SeniorUnsecuredNotes2Member" abstract="true" name="A2033SeniorUnsecuredNotes2Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="caci_SameDaySwingLineLoanMember" abstract="true" name="SameDaySwingLineLoanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="caci_TermLoanBFacilityMember" abstract="true" name="TermLoanBFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="caci_DebtInstrumentPeriodicPaymentRemainingAmount" abstract="false" name="DebtInstrumentPeriodicPaymentRemainingAmount" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="caci_InterestRateSwap2.20Member" abstract="true" name="InterestRateSwap2.20Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="caci_InterestRateSwap1.69Member" abstract="true" name="InterestRateSwap1.69Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="caci_InterestRateSwap1.98Member" abstract="true" name="InterestRateSwap1.98Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="caci_InterestRateSwap2.74Member" abstract="true" name="InterestRateSwap2.74Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="caci_InterestRateSwap1.80Member" abstract="true" name="InterestRateSwap1.80Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="caci_InterestRateSwap2.14Member" abstract="true" name="InterestRateSwap2.14Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="caci_InterestRateSwap2.04Member" abstract="true" name="InterestRateSwap2.04Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="caci_InterestRateSwap3.71Member" abstract="true" name="InterestRateSwap3.71Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="caci_InterestRateSwap3.67Member" abstract="true" name="InterestRateSwap3.67Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="caci_InterestRateSwap3.79Member" abstract="true" name="InterestRateSwap3.79Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="caci_InterestRateSwap3.80Member" abstract="true" name="InterestRateSwap3.80Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="caci_InterestRateSwap3.81Member" abstract="true" name="InterestRateSwap3.81Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="caci_ContingentConsiderationMember" abstract="true" name="ContingentConsiderationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="caci_BusinessCombinationDeferredAndContingentAcquisitionConsiderationLiabilities" abstract="false" name="BusinessCombinationDeferredAndContingentAcquisitionConsiderationLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="caci_A2023RepurchaseProgramMember" abstract="true" name="A2023RepurchaseProgramMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="caci_EffectiveIncomeTaxRateReconciliationRemeasurementOfDeferredTaxes" abstract="false" name="EffectiveIncomeTaxRateReconciliationRemeasurementOfDeferredTaxes" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="caci_EffectiveIncomeTaxRateReconciliationChangesInUnrecognizedTaxBenefits" abstract="false" name="EffectiveIncomeTaxRateReconciliationChangesInUnrecognizedTaxBenefits" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="caci_DeferredTaxAssetsOperatingLeaseLiabilities" abstract="false" name="DeferredTaxAssetsOperatingLeaseLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="caci_DeferredTaxAssetsCreditsAndNetOperatingLossCarryovers" abstract="false" name="DeferredTaxAssetsCreditsAndNetOperatingLossCarryovers" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="caci_TwoThousandTwentyFiveIncentiveCompensationPlanMember" abstract="true" name="TwoThousandTwentyFiveIncentiveCompensationPlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="caci_DirectorStockPurchasePlanMember" abstract="true" name="DirectorStockPurchasePlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="caci_EmployeeStockPurchasePlanMember" abstract="true" name="EmployeeStockPurchasePlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="caci_ManagementStockPurchasePlanMember" abstract="true" name="ManagementStockPurchasePlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="caci_CumulativeEquityInstrumentsAwarded" abstract="false" name="CumulativeEquityInstrumentsAwarded" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="caci_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfInstallments" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfInstallments" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="caci_ShareBasedCompensationArrangementByShareBasedPaymentAwardSpecifiedTargetSharesIssuedPercent" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardSpecifiedTargetSharesIssuedPercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="caci_ShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountPercentage" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="caci_ShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountRecognitionPeriod" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountRecognitionPeriod" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="caci_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAdjustmentsInPeriod" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAdjustmentsInPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="caci_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAdjustmentsInPeriodWeightedAverageGrantDateFairValue" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAdjustmentsInPeriodWeightedAverageGrantDateFairValue" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="caci_ShareBasedCompensationArrangementByShareBasedPaymentAwardGrantedAndForfeitedSpecifiedTargetSharesPercent" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardGrantedAndForfeitedSpecifiedTargetSharesPercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="caci_DefinedContributionPlansMember" abstract="true" name="DefinedContributionPlansMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="caci_CACIMARTPlanMember" abstract="true" name="CACIMARTPlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="caci_SupplementalSavingsPlanMember" abstract="true" name="SupplementalSavingsPlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="caci_EmployerContributionPercentage" abstract="false" name="EmployerContributionPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="caci_AnnualIRCCompensationLimit" abstract="false" name="AnnualIRCCompensationLimit" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="caci_SupplementalSavingsPlanCOLIGainLosses" abstract="false" name="SupplementalSavingsPlanCOLIGainLosses" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="caci_BusinessSegmentsTable" abstract="true" name="BusinessSegmentsTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="caci_USGovernmentMember" abstract="true" name="USGovernmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="caci_BusinessSegmentsLineItems" abstract="true" name="BusinessSegmentsLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
</xs:schema>
