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  <element name="ManageiqIncMember" id="rht_ManageiqIncMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="NonrecurringFairValueAdjustmentDeferredRevenue" id="rht_NonrecurringFairValueAdjustmentDeferredRevenue" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="NorthCarolinaMember" id="rht_NorthCarolinaMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="NumberOfCustomersWithGreaterThanTenPercentRevenue" id="rht_NumberOfCustomersWithGreaterThanTenPercentRevenue" type="xbrli:integerItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="NumberOfFacilitiesLeasedByCompany" id="rht_NumberOfFacilitiesLeasedByCompany" type="xbrli:integerItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="NumberOfFacilitiesToBeExited" id="rht_NumberOfFacilitiesToBeExited" type="xbrli:integerItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="OtherForeignCountryMember" id="rht_OtherForeignCountryMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="PercentageOfEquityInterestHeldByRelatedPartyInAcquiredEntityPriorToAcquisition" id="rht_PercentageOfEquityInterestHeldByRelatedPartyInAcquiredEntityPriorToAcquisition" type="num:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="PercentageOfRevenueFromMajorExternalCustomers" id="rht_PercentageOfRevenueFromMajorExternalCustomers" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="PerformanceShareAwardsMember" id="rht_PerformanceShareAwardsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="PerformanceShareUnitsMember" id="rht_PerformanceShareUnitsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="PeriodTypeAxis" id="rht_PeriodTypeAxis" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:dimensionItem"/>
  <element name="PeriodTypeDomain" id="rht_PeriodTypeDomain" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ReconciliationOfProvisionOfIncomeTaxesLineItems" id="rht_ReconciliationOfProvisionOfIncomeTaxesLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ReconciliationOfProvisionOfIncomeTaxesTable" id="rht_ReconciliationOfProvisionOfIncomeTaxesTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/>
  <element name="ScheduleOfAcquiredFiniteAndIndefiniteLivedIntangibleAssetsByMajorClassTable" id="rht_ScheduleOfAcquiredFiniteAndIndefiniteLivedIntangibleAssetsByMajorClassTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:hypercubeItem"/>
  <element name="ScheduleOfFiniteLivedIntangibleAssetsAmortizationExpenseTableTextBlock" id="rht_ScheduleOfFiniteLivedIntangibleAssetsAmortizationExpenseTableTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardPlanNameAxis" id="rht_ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardPlanNameAxis" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrldt:dimensionItem"/>
  <element name="ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardPlanNameDomain" id="rht_ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardPlanNameDomain" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SecondPerformanceSegmentMember" id="rht_SecondPerformanceSegmentMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ServiceBasedSharesAndShareUnitsMember" id="rht_ServiceBasedSharesAndShareUnitsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherThanOptionsVestedAndExpectedToVestAnnualForfeitureRate" id="rht_ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherThanOptionsVestedAndExpectedToVestAnnualForfeitureRate" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfAwardVestedAfterOneYear" id="rht_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfAwardVestedAfterOneYear" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SharePricePerformancePeriodMember" id="rht_SharePricePerformancePeriodMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ShareRepurchaseProgramExpirationDate" id="rht_ShareRepurchaseProgramExpirationDate" type="xbrli:dateItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ShareRepurchaseProgramRepurchasePeriodStartDate" id="rht_ShareRepurchaseProgramRepurchasePeriodStartDate" type="xbrli:dateItemType" abstract="false" xbrli:periodType="instant" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="SignificantAccountingPoliciesPolicyTextBlock" id="rht_SignificantAccountingPoliciesPolicyTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="TargetedPercentageOfPerformanceShareUnitEarnedByExecutive" id="rht_TargetedPercentageOfPerformanceShareUnitEarnedByExecutive" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="ThirdPerformanceSegmentMember" id="rht_ThirdPerformanceSegmentMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="TrademarksCopyrightsAndPatentsMember" id="rht_TrademarksCopyrightsAndPatentsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
  <element name="TradenamesAndOtherMember" id="rht_TradenamesAndOtherMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item"/>
</schema>
