<?xml version="1.0"?><ownershipDocument><schemaVersion>X0201</schemaVersion>    <documentType>3</documentType><periodOfReport>2003-10-01</periodOfReport><noSecuritiesOwned>0</noSecuritiesOwned><issuer><issuerCik>0000908652</issuerCik><issuerName>LANDRYS  RESTAURANTS INC</issuerName>        <issuerTradingSymbol>Lny</issuerTradingSymbol></issuer><reportingOwner><reportingOwnerId><rptOwnerCik>0001265970</rptOwnerCik><rptOwnerName>RICHMOND MICHAEL</rptOwnerName></reportingOwnerId><reportingOwnerAddress><rptOwnerStreet1>1510 WEST LOOP SOUTH</rptOwnerStreet1><rptOwnerStreet2></rptOwnerStreet2><rptOwnerCity>HOUSTON</rptOwnerCity><rptOwnerState>TX</rptOwnerState><rptOwnerZipCode>77027</rptOwnerZipCode><rptOwnerStateDescription></rptOwnerStateDescription></reportingOwnerAddress><reportingOwnerRelationship><isDirector>1</isDirector><isOfficer>0</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther></reportingOwnerRelationship></reportingOwner><derivativeTable><derivativeHolding><securityTitle><value>Option to Purchase</value></securityTitle><conversionOrExercisePrice><value>20.6</value></conversionOrExercisePrice><exerciseDate><value>2003-10-01</value></exerciseDate><expirationDate><value>2013-10-01</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock ($.01 par)</value></underlyingSecurityTitle><underlyingSecurityShares><value>10000</value><footnoteId id="F1" /></underlyingSecurityShares></underlyingSecurity><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></derivativeHolding></derivativeTable><footnotes><footnote id="F1">Option to purchase 10,000 shares pursuant to stock option plan, exerciseable 20% per year starting 10/1/04 and each anniversary date thereafter.  (Initial grant for new Director)</footnote></footnotes><remarks></remarks><ownerSignature><signatureName>Michael Richmond</signatureName><signatureDate>2003-10-08</signatureDate></ownerSignature></ownershipDocument>

