<SUBMISSION>
<ACCESSION-NUMBER>0000743368-05-000065
<TYPE>4
<PUBLIC-DOCUMENT-COUNT>1
<PERIOD>20050510
<FILING-DATE>20050512
<DATE-OF-FILING-DATE-CHANGE>20050512
<REPORTING-OWNER>
<OWNER-DATA>
<CONFORMED-NAME>SAWCHUK ARTHUR R
<CIK>0001198834
</OWNER-DATA>
<FILING-VALUES>
<FORM-TYPE>4
<ACT>34
<FILE-NUMBER>001-08712
<FILM-NUMBER>05824750
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>55 EAST CAMPERDOWN WAY
<STREET2>C/O BOWATER INC
<CITY>GREENVILLE
<STATE>SC
<ZIP>29601
<PHONE>864 282 9307
</BUSINESS-ADDRESS>
</REPORTING-OWNER>
<ISSUER>
<COMPANY-DATA>
<CONFORMED-NAME>BOWATER INC
<CIK>0000743368
<ASSIGNED-SIC>2621
<IRS-NUMBER>620721803
<STATE-OF-INCORPORATION>DE
<FISCAL-YEAR-END>1231
</COMPANY-DATA>
<BUSINESS-ADDRESS>
<STREET1>55 EAST CAMPERDOWN WAY
<STREET2>P O BOX 1028
<CITY>GREENVILLE
<STATE>SC
<ZIP>29601
<PHONE>8642717733
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>55 EAST CAMPERDOWN WAY
<STREET2>P O BOX 1028
<CITY>GREENVILLE
<STATE>SC
<ZIP>29602
</MAIL-ADDRESS>
</ISSUER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2005-05-10</periodOfReport>

    <issuer>
        <issuerCik>0000743368</issuerCik>
        <issuerName>BOWATER INC</issuerName>
        <issuerTradingSymbol>BOW</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001198834</rptOwnerCik>
            <rptOwnerName>SAWCHUK ARTHUR R</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>55 EAST CAMPERDOWN WAY</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>GREENVILLE</rptOwnerCity>
            <rptOwnerState>SC</rptOwnerState>
            <rptOwnerZipCode>29601</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Restricted Stock Units</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F2"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2005-05-10</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>1450</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F1"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>1450</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1450</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">These Restricted Stock Units were granted under the Company's 2004 Non-Employee Director Stock Unit Plan (the &quot;Directors Stock Unit Plan&quot;).  The Directors Stock Unit Plan provides for settlement of the Restricted Stock Units in cash upon the director's  ceasing to be an outside director of the Company or in two equal installments on April 30, 2006 and on April 30, 2007.</footnote>
        <footnote id="F2">1 for 1</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Arthur R. Sawchuk</signatureName>
        <signatureDate>2005-05-12</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SUBMISSION>
