<?xml version="1.0"?>
<ownershipDocument>
    <schemaVersion>X0201</schemaVersion>

    <documentType>4</documentType><periodOfReport>2003-11-10</periodOfReport>
    <issuer>
        <issuerCik>0000892533</issuerCik>
        <issuerName>HAGGAR CORP</issuerName>
        <issuerTradingSymbol>HGGR</issuerTradingSymbol></issuer><reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001245015</rptOwnerCik>
            <rptOwnerName>EVANS RAE F</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O EVANS CAPITOL GROUP</rptOwnerStreet1>
            <rptOwnerStreet2>888 17TH STREET, N.W., SUITE 105</rptOwnerStreet2>
            <rptOwnerCity>WASHINGTON</rptOwnerCity>
            <rptOwnerState>DC</rptOwnerState>
            <rptOwnerZipCode>20006</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
<isDirector>1</isDirector><isOfficer>0</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther></reportingOwnerRelationship></reportingOwner><nonDerivativeTable><nonDerivativeTransaction><securityTitle><value>COMMON STOCK, $0.10 PAR VALUE</value></securityTitle><transactionDate><value>2003-11-10</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>M</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>7364</value></transactionShares><transactionPricePerShare><value>12.875</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>12364</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value/></natureOfOwnership></ownershipNature></nonDerivativeTransaction><nonDerivativeTransaction><securityTitle><value>COMMON STOCK, $0.10 PAR VALUE</value></securityTitle><transactionDate><value>2003-11-10</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>S</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>7364</value></transactionShares><transactionPricePerShare><value>15.17</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>D</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>5000</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value/></natureOfOwnership></ownershipNature></nonDerivativeTransaction></nonDerivativeTable><derivativeTable><derivativeTransaction><securityTitle><value>EMPLOYEE STOCK OPTION (RIGHT TO BUY)</value></securityTitle><conversionOrExercisePrice><value>12.875</value></conversionOrExercisePrice><transactionDate><value>2003-11-10</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>M</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>4091</value></transactionShares><transactionPricePerShare><value>0</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>D</value></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><footnoteId id="F1"/></exerciseDate><expirationDate><value>2004-02-24</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>COMMON STOCK, $0.10 PAR VALUE</value></underlyingSecurityTitle><underlyingSecurityShares><value>4091</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>0</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value/></natureOfOwnership></ownershipNature></derivativeTransaction><derivativeTransaction><securityTitle><value>EMPLOYEE STOCK OPTION (RIGHT TO BUY)</value></securityTitle><conversionOrExercisePrice><value>12.875</value></conversionOrExercisePrice><transactionDate><value>2003-11-10</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>M</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>3273</value></transactionShares><transactionPricePerShare><value>0</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>D</value></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><footnoteId id="F2"/></exerciseDate><expirationDate><value>2005-02-09</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>COMMON STOCK, $0.10 PAR VALUE</value></underlyingSecurityTitle><underlyingSecurityShares><value>3273</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>0</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value/></natureOfOwnership></ownershipNature></derivativeTransaction><derivativeHolding><securityTitle><value>EMPLOYEE STOCK OPTION (RIGHT TO BUY)</value></securityTitle><conversionOrExercisePrice><value>12.875</value></conversionOrExercisePrice><exerciseDate><footnoteId id="F3"/></exerciseDate><expirationDate><value>2007-02-13</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>COMMON STOCK, $0.10 PAR VALUE</value></underlyingSecurityTitle><underlyingSecurityShares><value>4909</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>4909</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value/></natureOfOwnership></ownershipNature></derivativeHolding><derivativeHolding><securityTitle><value>EMPLOYEE STOCK OPTION (RIGHT TO BUY)</value></securityTitle><conversionOrExercisePrice><value>13.875</value></conversionOrExercisePrice><exerciseDate><footnoteId id="F4"/></exerciseDate><expirationDate><value>2010-02-09</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>COMMON STOCK, $0.10 PAR VALUE</value></underlyingSecurityTitle><underlyingSecurityShares><value>6000</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>6000</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value/></natureOfOwnership></ownershipNature></derivativeHolding></derivativeTable><footnotes><footnote id="F1">The option became exercisable in five equal annual installments commencing on February 24, 1995.</footnote><footnote id="F2">The option became exercisable in five equal annual installments commencing on February 9, 1996.</footnote><footnote id="F3">The option became exercisable in five equal annual installments commencing on February 13, 1998.</footnote><footnote id="F4">The option becomes exercisable in five equal annual installments commencing on February 9, 2001.</footnote></footnotes><remarks/><ownerSignature><signatureName>STEVEN D. DAVIDSON AS ATTORNEY-IN-FACT FOR RAE F. EVANS</signatureName><signatureDate>2003-11-12</signatureDate></ownerSignature></ownershipDocument>

