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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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 Jkum9K5sXhg2N0qz8FfHiw==

<SEC-DOCUMENT>0000205520-04-000008.txt : 20041020
<SEC-HEADER>0000205520-04-000008.hdr.sgml : 20041020
<ACCEPTANCE-DATETIME>20041020182643
ACCESSION NUMBER:		0000205520-04-000008
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20041019
FILED AS OF DATE:		20041020
DATE AS OF CHANGE:		20041020

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			ERNST MARK A
		CENTRAL INDEX KEY:			0001181852

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-07553
		FILM NUMBER:		041088267

	MAIL ADDRESS:	
		STREET 1:		2100 STARTFORD ROAD
		CITY:			MISSION HILLS
		STATE:			KS
		ZIP:			66208

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			KNIGHT RIDDER INC
		CENTRAL INDEX KEY:			0000205520
		STANDARD INDUSTRIAL CLASSIFICATION:	NEWSPAPERS:  PUBLISHING OR PUBLISHING & PRINTING [2711]
		IRS NUMBER:				380723657
		STATE OF INCORPORATION:			FL
		FISCAL YEAR END:			1227

	BUSINESS ADDRESS:	
		STREET 1:		50 W SAN FERNANDO ST
		CITY:			SAN JOSE
		STATE:			CA
		ZIP:			95113
		BUSINESS PHONE:		4089387700

	MAIL ADDRESS:	
		STREET 1:		50 W SAN FERNANDO ST
		CITY:			SAN JOSE
		STATE:			CA
		ZIP:			95113

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	KNIGHT RIDDER NEWSPAPERS INC /FL/
		DATE OF NAME CHANGE:	19860707
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgardoc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2004-10-19</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000205520</issuerCik>
        <issuerName>KNIGHT RIDDER INC</issuerName>
        <issuerTradingSymbol>KRIC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001181852</rptOwnerCik>
            <rptOwnerName>ERNST MARK A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>2100 STARTFORD ROAD</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>MISSION HILLS</rptOwnerCity>
            <rptOwnerState>KS</rptOwnerState>
            <rptOwnerZipCode>66208</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <transactionDate>
                <value>2004-10-19</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>217.6594</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>68.915</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>628.4197</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Shares acquired in payment of director retainer fee, under Compensation Plan for Nonemployee Directors.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>By: Polk Laffoon  For: Mark A Ernst</signatureName>
        <signatureDate>2004-10-19</signatureDate>
    </ownerSignature>
</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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