<SUBMISSION>
<ACCESSION-NUMBER>0000949297-09-000133
<TYPE>4
<PUBLIC-DOCUMENT-COUNT>1
<PERIOD>20091021
<FILING-DATE>20091023
<DATE-OF-FILING-DATE-CHANGE>20091023
<ISSUER>
<COMPANY-DATA>
<CONFORMED-NAME>APAC CUSTOMER SERVICE INC
<CIK>0000949297
<ASSIGNED-SIC>7389
<IRS-NUMBER>362777140
<STATE-OF-INCORPORATION>IL
<FISCAL-YEAR-END>1230
</COMPANY-DATA>
<BUSINESS-ADDRESS>
<STREET1>SIX PARKWAY NORTH
<CITY>DEERFIELD
<STATE>IL
<ZIP>60015
<PHONE>847-236-5452
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>SIX PARKWAY NORTH
<CITY>DEERFIELD
<STATE>IL
<ZIP>60015
</MAIL-ADDRESS>
<FORMER-COMPANY>
<FORMER-CONFORMED-NAME>APAC TELESERVICES INC
<DATE-CHANGED>19950915
</FORMER-COMPANY>
<FORMER-COMPANY>
<FORMER-CONFORMED-NAME>APAC CORP
<DATE-CHANGED>19950811
</FORMER-COMPANY>
</ISSUER>
<REPORTING-OWNER>
<OWNER-DATA>
<CONFORMED-NAME>SCHWARTZ THEODORE G
<CIK>0001001874
</OWNER-DATA>
<FILING-VALUES>
<FORM-TYPE>4
<ACT>34
<FILE-NUMBER>000-26786
<FILM-NUMBER>091134350
</FILING-VALUES>
<MAIL-ADDRESS>
<STREET1>C/O APAC CUSTOMER SERVICES, INC.
<STREET2>SIX PARKWAY NORTH
<CITY>DEERFIELD
<STATE>IL
<ZIP>60015
</MAIL-ADDRESS>
</REPORTING-OWNER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2009-10-21</periodOfReport>

    <issuer>
        <issuerCik>0000949297</issuerCik>
        <issuerName>APAC CUSTOMER SERVICE INC</issuerName>
        <issuerTradingSymbol>APAC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001001874</rptOwnerCik>
            <rptOwnerName>SCHWARTZ THEODORE G</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O APAC CUSTOMER SERVICES, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>2333 WAUKEGAN ROAD, SUITE 100</rptOwnerStreet2>
            <rptOwnerCity>BANNOCKBURN</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60015</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2009-10-21</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>165000</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>6.86</value>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>15205948</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnote</value>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2009-10-22</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>157559</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>6.64</value>
                    <footnoteId id="F4"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>15048389</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnote</value>
                    <footnoteId id="F5"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Shares sold pursuant to 10b5-1 plan adopted on May 11, 2009.</footnote>
        <footnote id="F2">This transaction was executed in multiple trades at prices ranging from $6.67 to $6.99.  The price reported above reflects the weighted average sales price.</footnote>
        <footnote id="F3">The shares listed as beneficially owned by Mr. Schwartz include 5,347,948 held by a revocable trust which Mr. Schwartz controls (the &quot;TGS Trust&quot;) and 9,858,000 shares held by CAPA Partners, L.P. (&quot;CAPA L.P.&quot;).  Mr. Schwartz disclaims beneficial ownership of the shares held by CAPA L.P. except to the extent of his pecuniary interest therein.</footnote>
        <footnote id="F4">This transaction was executed in multiple trades at prices ranging from $6.50 to $6.83. The price reported above reflects the weighted average sales price.</footnote>
        <footnote id="F5">The shares listed as beneficially owned by Mr. Schwartz include 5,190,389 held by a revocable trust which Mr. Schwartz controls (the &quot;TGS Trust&quot;) and 9,858,000 shares held by CAPA Partners, L.P. (&quot;CAPA L.P.&quot;).  Mr. Schwartz disclaims beneficial ownership of the shares held by CAPA L.P. except to the extent of his pecuniary interest therein.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Robert B. Nachwalter, Attorney-in-Fact                              /Theodore G. Schwartz</signatureName>
        <signatureDate>2009-10-23</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SUBMISSION>
