<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2009-09-08</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000098537</issuerCik>
        <issuerName>TODD SHIPYARDS CORP</issuerName>
        <issuerTradingSymbol>TOD</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001304139</rptOwnerCik>
            <rptOwnerName>LEWIS WILLIAM L</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>P.O. BOX 3806</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>SEATTLE</rptOwnerCity>
            <rptOwnerState>WA</rptOwnerState>
            <rptOwnerZipCode>98124</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Todd Shipyards Corp. Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2009-09-08</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>4000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>16.13</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>8650</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Todd stock settled appreciation rights</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>16.98</value>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F3"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>2000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Upon exercise of the SSARs, the holder is entitled to receive value equal to the number of rights being exercised times the then current fair market value reduced by $16.98, the fair market value on date of grant.  Such value will be paid, net of withholding taxes, in shares of Todd Common Stock.</footnote>
        <footnote id="F2">One-third of the 2,000 SSARs vest each year on August 21 commencing in 2010 (through 2012).</footnote>
        <footnote id="F3">Upon certain termination events, but no later than August 21, 2014.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>William L. Lewis</signatureName>
        <signatureDate>2009-09-09</signatureDate>
    </ownerSignature>
</ownershipDocument>
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X0303
4
2009-09-08
0
0000098537
TODD SHIPYARDS CORP
TOD
0001304139
LEWIS WILLIAM L
P.O. BOX 3806
SEATTLE
WA
98124
1
0
0
0
Todd Shipyards Corp. Common Stock
2009-09-08
4
P
0
4000
16.13
A
8650
D
Todd stock settled appreciation rights
16.98
Common Stock
2000
2000
D
Upon exercise of the SSARs, the holder is entitled to receive value equal to the number of rights being exercised times the then current fair market value reduced by $16.98, the fair market value on date of grant.  Such value will be paid, net of withholding taxes, in shares of Todd Common Stock.
One-third of the 2,000 SSARs vest each year on August 21 commencing in 2010 (through 2012).
Upon certain termination events, but no later than August 21, 2014.
William L. Lewis
2009-09-09