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  <xs:element id="ftnt_ShortTermInvestmentsLineItemMember" abstract="true" name="ShortTermInvestmentsLineItemMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="ftnt_ShareRepurchaseProgramMember" abstract="true" name="ShareRepurchaseProgramMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="ftnt_SecuritySubscriptionMember" abstract="true" name="SecuritySubscriptionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="ftnt_MutualCovenantNottoSueAgreementPatentClaimsInitialTerm" abstract="false" name="MutualCovenantNottoSueAgreementPatentClaimsInitialTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="ftnt_AsiaPacificAndJapanMember" abstract="true" name="AsiaPacificAndJapanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="ftnt_MutualCovenantNottoSueAgreementPatentClaimsExtensionOptionTerm" abstract="false" name="MutualCovenantNottoSueAgreementPatentClaimsExtensionOptionTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
</xs:schema>
