<?xml version="1.0"?><ownershipDocument><schemaVersion>X0201</schemaVersion>    <documentType>4/A</documentType><periodOfReport>2003-08-18</periodOfReport><dateOfOriginalSubmission>2003-08-20</dateOfOriginalSubmission><notSubjectToSection16>0</notSubjectToSection16><issuer><issuerCik>0000857323</issuerCik><issuerName>GTECH HOLDINGS CORP</issuerName>        <issuerTradingSymbol>gtk</issuerTradingSymbol></issuer><reportingOwner><reportingOwnerId><rptOwnerCik>0001241413</rptOwnerCik><rptOwnerName>CRISAFULLI MARC A</rptOwnerName></reportingOwnerId><reportingOwnerAddress><rptOwnerStreet1>C/O 55 TECHNOLOGY WAY</rptOwnerStreet1><rptOwnerStreet2></rptOwnerStreet2><rptOwnerCity>WEST GREENWICH</rptOwnerCity><rptOwnerState>RI</rptOwnerState><rptOwnerZipCode>02817</rptOwnerZipCode><rptOwnerStateDescription></rptOwnerStateDescription></reportingOwnerAddress><reportingOwnerRelationship><isDirector>0</isDirector><isOfficer>1</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther><officerTitle>Senior VP, GC &amp; Secretary</officerTitle></reportingOwnerRelationship></reportingOwner><nonDerivativeTable><nonDerivativeTransaction><securityTitle><value>Common Stock</value></securityTitle><transactionDate><value>2003-08-18</value></transactionDate><deemedExecutionDate></deemedExecutionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>S</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionTimeliness><value></value></transactionTimeliness><transactionAmounts><transactionShares><value>772.9823</value></transactionShares><transactionPricePerShare><value>41.38</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>D</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>43129.0398</value><footnoteId id="F1" /></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></nonDerivativeTransaction></nonDerivativeTable><footnotes><footnote id="F1">Correction of securities beneficially owned following the transaction.</footnote></footnotes><remarks></remarks><ownerSignature><signatureName>Denise M. Ogilvie, Authorized Person Under Power of Attorney</signatureName><signatureDate>2003-08-20</signatureDate></ownerSignature></ownershipDocument>

