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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 NBol4JoSCa2Xn1CQQcWGqE7fpHMCoTl5nJ9qr80d19StLtl4qN8oV2rpo97T7/Ou
 ++wWRncaqxTlbQl1qDFkfg==

<SEC-DOCUMENT>0001181431-11-007223.txt : 20110203
<SEC-HEADER>0001181431-11-007223.hdr.sgml : 20110203
<ACCEPTANCE-DATETIME>20110203185134
ACCESSION NUMBER:		0001181431-11-007223
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20110202
FILED AS OF DATE:		20110203
DATE AS OF CHANGE:		20110203

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Di Fronzo Pascal W
		CENTRAL INDEX KEY:			0001394844

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-14338
		FILM NUMBER:		11572000

	MAIL ADDRESS:	
		STREET 1:		AUTODESK, INC.
		STREET 2:		111 MCINNIS PARKWAY
		CITY:			SAN RAFAEL
		STATE:			CA
		ZIP:			94903

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			AUTODESK INC
		CENTRAL INDEX KEY:			0000769397
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-PREPACKAGED SOFTWARE [7372]
		IRS NUMBER:				942819853
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0131

	BUSINESS ADDRESS:	
		STREET 1:		111 MCINNIS PKWY
		CITY:			SAN RAFAEL
		STATE:			CA
		ZIP:			94903
		BUSINESS PHONE:		4155075000

	MAIL ADDRESS:	
		STREET 1:		111 MCINNIS PKWY
		CITY:			SAN RAFAEL
		STATE:			CA
		ZIP:			94903
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>rrd299819.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2011-02-02</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000769397</issuerCik>
        <issuerName>AUTODESK INC</issuerName>
        <issuerTradingSymbol>ADSK</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001394844</rptOwnerCik>
            <rptOwnerName>Di Fronzo Pascal W</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>111 MCINNIS PARKWAY</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>SAN RAFAEL</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94903</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Sr. VP, Gen'l Counsel &amp; Secy</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2011-02-02</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>2002</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>42.45</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>26969</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on October 4, 2010.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Nancy R. Thiel, Attorney-in-Fact for Pascal W. Di Fronzo</signatureName>
        <signatureDate>2011-02-03</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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