-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 GRpY5avzkszgf+6+9LnDdFhKe7N202cBsj+Y4WCDIIvg5f/pAPdnY6BOE4oZrB59
 5t+RwNLJhBF8OM3tpcbl6w==

<SEC-DOCUMENT>0001208722-06-000003.txt : 20060410
<SEC-HEADER>0001208722-06-000003.hdr.sgml : 20060410
<ACCEPTANCE-DATETIME>20060410181458
ACCESSION NUMBER:		0001208722-06-000003
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20060406
FILED AS OF DATE:		20060410
DATE AS OF CHANGE:		20060410

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:			1226

	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

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			EFFREN GARY R
		CENTRAL INDEX KEY:			0001208722

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-07553
		FILM NUMBER:		06751893

	MAIL ADDRESS:	
		STREET 1:		50 W SAN FERNANDO ST 15TH FLR
		CITY:			SAN JOSE
		STATE:			CA
		ZIP:			95113
</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>2006-04-06</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

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

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001208722</rptOwnerCik>
            <rptOwnerName>EFFREN GARY R</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>50 W. SAN FERNANDO STREET</rptOwnerStreet1>
            <rptOwnerStreet2>15TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>SAN JOSE</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>95113</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Vice President/Finance</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Deferred Compensation Stock Units</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2006-04-06</value>
            </transactionDate>
            <deemedExecutionDate>
                <value>2006-04-06</value>
            </deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>I</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>285.963</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>63.77</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F1"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>285.963</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>3751.2938</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Units were acquired under the issuer's MBO Deferral Plan, subject to reporting person's rights under the Plan to transfer the units to another deferred compensation plan.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>By: Polk Laffoon  For: Gary R. Effren</signatureName>
        <signatureDate>2006-04-10</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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