-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 WO8BcMeB19nA20BhUYcKOhp8AOYhtJ1ZGsgjqqVPk5khNz0oaMqBCk2pRiZgS0AA
 04xiMkxtnWEaL5BD5OTwtQ==

<SEC-DOCUMENT>0000877890-09-000017.txt : 20090217
<SEC-HEADER>0000877890-09-000017.hdr.sgml : 20090216
<ACCEPTANCE-DATETIME>20090217193742
ACCESSION NUMBER:		0000877890-09-000017
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20090130
FILED AS OF DATE:		20090217
DATE AS OF CHANGE:		20090217

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			LEVINE PETER
		CENTRAL INDEX KEY:			0001416237

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-27084
		FILM NUMBER:		09616804

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		954.267.3000

	MAIL ADDRESS:	
		STREET 1:		851 WEST CYPRESS CREEK ROAD
		CITY:			FORT LAUDERDALE
		STATE:			FL
		ZIP:			33309

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CITRIX SYSTEMS INC
		CENTRAL INDEX KEY:			0000877890
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-PREPACKAGED SOFTWARE [7372]
		IRS NUMBER:				752275152
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		851 WEST CYPRESS CREEK ROAD
		CITY:			FORT LAUDERDALE
		STATE:			FL
		ZIP:			33309
		BUSINESS PHONE:		9542673000

	MAIL ADDRESS:	
		STREET 1:		851 WEST CYPRESS CREEK ROAD
		CITY:			FL LAUDERDALE
		STATE:			FL
		ZIP:			33309
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2009-01-30</periodOfReport>

    <issuer>
        <issuerCik>0000877890</issuerCik>
        <issuerName>CITRIX SYSTEMS INC</issuerName>
        <issuerTradingSymbol>CTXS</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001416237</rptOwnerCik>
            <rptOwnerName>LEVINE PETER</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O CITRIX SYSTEMS, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>851 WEST CYPRESS CREEK ROAD</rptOwnerStreet2>
            <rptOwnerCity>FORT LAUDERDALE</rptOwnerCity>
            <rptOwnerState>FL</rptOwnerState>
            <rptOwnerZipCode>33309</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>SVP &amp; GM, Virtualization &amp; Mgt</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2009-01-30</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>9786</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>21.0154</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>19572</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By SP Partners Investments LP</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2009-02-02</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>9786</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>21.4855</value>
                    <footnoteId id="F3"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>9786</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By SP Partners Investments LP</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2009-02-03</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>9786</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>21.7518</value>
                    <footnoteId id="F4"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By SP Partners Investments LP</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>5016</value>
                    <footnoteId id="F5"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By The Summit Family Trust</value>
                    <footnoteId id="F5"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1027</value>
                    <footnoteId id="F6"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>The Peter Levine Children's Trust FBO Tatym A. Levine UAD 12/30/2008</value>
                    <footnoteId id="F6"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1027</value>
                    <footnoteId id="F7"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>The Peter Levine Children's Trust FBO Oliver T. Levine UAD 12/30/2008</value>
                    <footnoteId id="F7"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>838</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The shares sold on this date were sold in multiple transactions. This price is the weighted average sales price per share of all shares sold on this date.  The actual sale prices per share range from $20.99 to $21.06.  The reporting person hereby undertakes to provide upon request by the staff of the Securities and Exchange Commission, Citrix Systems, Inc. or any security holders of Citrix Systems, Inc., full information regarding the number of shares sold at each separate price.</footnote>
        <footnote id="F2">Shares received as merger consideration by SP Partners Investment LP (&quot;SPPI&quot;) pursuant to the acquisition of XenSource, Inc. by Citrix Systems, Inc. The reporting person is the trustee of The Summit Family Trust (&quot;Summit&quot;)  which is a general partner and limited partner of SPPI.  The reporting person disclaims beneficial ownership with respect to shares held by SPPI, except to the extent of his pecuniary interest therein.</footnote>
        <footnote id="F3">The shares sold on this date were sold in multiple transactions. This price is the weighted average sales price per share of all shares sold on this date.  The actual sale prices per share range from $21.42 to $21.58.  The reporting person hereby undertakes to provide upon request by the staff of the Securities and Exchange Commission, Citrix Systems, Inc. or any security holders of Citrix Systems, Inc., full information regarding the number of shares sold at each separate price.</footnote>
        <footnote id="F4">The shares sold on this date were sold in multiple transactions. This price is the weighted average sales price per share of all shares sold on this date.  The actual sale prices per share range from $21.70 to $21.81.  The reporting person hereby undertakes to provide upon request by the staff of the Securities and Exchange Commission, Citrix Systems, Inc. or any security holders of Citrix Systems, Inc., full information regarding the number of shares sold at each separate price.</footnote>
        <footnote id="F5">Shares received as merger consideration by SPPI pursuant to the acquisition of XenSource, Inc. by Citrix Systems, Inc. and distributed to Summit, an entity of which the reporting person is the trustee and has voting and dispositive power. The reporting person disclaims beneficial ownership with respect to shares held by Summit, except to the extent of his pecuniary interest therein.</footnote>
        <footnote id="F6">These shares are held in a trust for the benefit of the reporting person's children. The reporting person's spouse is trustee of the trust. The reporting person disclaims beneficial ownership with respect to shares held by The Peter Levine Children's Trust FBO Tatym A. Levine UAD 12/30/2008, except to the extent of his pecuniary interest therein.</footnote>
        <footnote id="F7">These shares are held in a trust for the benefit of the reporting person's children. The reporting person's spouse is trustee of the trust. The reporting person disclaims beneficial ownership with respect to shares held by The Peter Levine Children's Trust FBO Oliver T. Levine UAD 12/30/2008, except to the extent of his pecuniary interest therein.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/Antonio G. Gomes, Attorney-in-Fact for Peter Levine</signatureName>
        <signatureDate>2009-02-17</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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