<SUBMISSION>
<ACCESSION-NUMBER>0000007694-03-000216
<TYPE>4
<PUBLIC-DOCUMENT-COUNT>1
<PERIOD>20031215
<FILING-DATE>20031217
<ISSUER>
<COMPANY-DATA>
<CONFORMED-NAME>ASHLAND INC
<CIK>0000007694
<ASSIGNED-SIC>5160
<IRS-NUMBER>610122250
<STATE-OF-INCORPORATION>KY
<FISCAL-YEAR-END>0930
</COMPANY-DATA>
<BUSINESS-ADDRESS>
<STREET1>50 E. RIVERCENTER BOULEVARD
<CITY>COVINGTON
<STATE>KY
<ZIP>41012
<PHONE>6068153333
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>50 E. RIVERCENTER BOULEVARD
<CITY>COVINGTON
<STATE>KY
<ZIP>41012
</MAIL-ADDRESS>
<FORMER-COMPANY>
<FORMER-CONFORMED-NAME>ASHLAND OIL INC
<DATE-CHANGED>19920703
</FORMER-COMPANY>
<FORMER-COMPANY>
<FORMER-CONFORMED-NAME>ASHLAND OIL & REFINING CO
<DATE-CHANGED>19700806
</FORMER-COMPANY>
</ISSUER>
<REPORTING-OWNER>
<OWNER-DATA>
<CONFORMED-NAME>QUIN J MARVIN
<CIK>0001023536
</OWNER-DATA>
<FILING-VALUES>
<FORM-TYPE>4
<ACT>34
<FILE-NUMBER>001-02918
<FILM-NUMBER>031059176
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>PO BOX 391
<CITY>ASHLAND
<STATE>KY
<ZIP>41114
<PHONE>6063293333
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>C/O ASHLAND INC
<STREET2>1000 ASHLAND DRIVE PO BOX 391
<CITY>RUSSELL
<STATE>KY
<ZIP>41169
</MAIL-ADDRESS>
</REPORTING-OWNER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>c0001023536d20031217f4f.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<ownershipDocument><schemaVersion>X0201</schemaVersion>    <documentType>4</documentType><periodOfReport>2003-12-15</periodOfReport><notSubjectToSection16>0</notSubjectToSection16><issuer><issuerCik>0000007694</issuerCik><issuerName>ASHLAND INC</issuerName>        <issuerTradingSymbol>ASH</issuerTradingSymbol></issuer><reportingOwner><reportingOwnerId><rptOwnerCik>0001023536</rptOwnerCik><rptOwnerName>QUIN J MARVIN</rptOwnerName></reportingOwnerId><reportingOwnerAddress><rptOwnerStreet1>50 E. RIVERCENTER BOULEVARD</rptOwnerStreet1><rptOwnerStreet2></rptOwnerStreet2><rptOwnerCity>COVINGTON</rptOwnerCity><rptOwnerState>KY</rptOwnerState><rptOwnerZipCode>41012-0391</rptOwnerZipCode><rptOwnerStateDescription></rptOwnerStateDescription></reportingOwnerAddress><reportingOwnerRelationship><isDirector>0</isDirector><isOfficer>1</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther><officerTitle>Chief Financial Officer</officerTitle><otherText></otherText></reportingOwnerRelationship></reportingOwner><nonDerivativeTable><nonDerivativeHolding><securityTitle><value>Common Stock</value></securityTitle><postTransactionAmounts><sharesOwnedFollowingTransaction><value>22639</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value></value></natureOfOwnership></ownershipNature></nonDerivativeHolding><nonDerivativeHolding><securityTitle><value>Common Stock</value></securityTitle><postTransactionAmounts><sharesOwnedFollowingTransaction><value>7032</value><footnoteId id="F1"/></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>I</value></directOrIndirectOwnership><natureOfOwnership><value>LESOP</value></natureOfOwnership></ownershipNature></nonDerivativeHolding><nonDerivativeHolding><securityTitle><value>Common Stock</value></securityTitle><postTransactionAmounts><sharesOwnedFollowingTransaction><value>2279</value><footnoteId id="F2"/></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>I</value></directOrIndirectOwnership><natureOfOwnership><value>401(K)</value></natureOfOwnership></ownershipNature></nonDerivativeHolding></nonDerivativeTable><derivativeTable><derivativeTransaction><securityTitle><value>Common Stock Units</value></securityTitle><conversionOrExercisePrice><value>0</value><footnoteId id="F3"/></conversionOrExercisePrice><transactionDate><value>2003-12-15</value></transactionDate><deemedExecutionDate></deemedExecutionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>J</transactionCode><equitySwapInvolved>0</equitySwapInvolved><footnoteId id="F4"/></transactionCoding><transactionAmounts><transactionShares><value>346</value></transactionShares><transactionPricePerShare><value>41.67</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><footnoteId id="F4"/></exerciseDate><expirationDate><footnoteId id="F4"/></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>346</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>75242</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value></value></natureOfOwnership></ownershipNature></derivativeTransaction></derivativeTable><footnotes><footnote id="F1">Shares accrued under Ashland's Leveraged Employee Stock Ownership Plan as of 11-30-03.</footnote><footnote id="F2">Based on Employee Savings Plan information as of 12-15-03, the latest date for which such information is reasonably available.</footnote><footnote id="F3">1-for-1</footnote><footnote id="F4">Common Stock Units acquired pursuant to Ashland's 1995 Deferred Compensation Plan as of 12-15-03,  payable in cash or stock upon termination of service and exempt under Rule 16b-3.  (One (1) Common Stock Unit in the 1995 Deferred Compensation Plan is the equivalent of one (1) share of Ashland Common Stock)</footnote></footnotes><ownerSignature><signatureName>M. Craig Hall</signatureName><signatureDate>2003-12-17</signatureDate></ownerSignature></ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SUBMISSION>
