<SEC-DOCUMENT>0001257640-12-000019.txt : 20120612
<SEC-HEADER>0001257640-12-000019.hdr.sgml : 20120612
<ACCEPTANCE-DATETIME>20120612115843
ACCESSION NUMBER:		0001257640-12-000019
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20120608
FILED AS OF DATE:		20120612
DATE AS OF CHANGE:		20120612

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			WILDENTHAL KERN
		CENTRAL INDEX KEY:			0001552074

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-31763
		FILM NUMBER:		12902321

	MAIL ADDRESS:	
		STREET 1:		5430 LBJ FREEWAY, SUITE 1700
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75240

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			KRONOS WORLDWIDE INC
		CENTRAL INDEX KEY:			0001257640
		STANDARD INDUSTRIAL CLASSIFICATION:	INDUSTRIAL INORGANIC CHEMICALS [2810]
		IRS NUMBER:				760294959
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		5430 LBJ FREEWAY
		STREET 2:		SUITE 1700
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75240
		BUSINESS PHONE:		9722331700

	MAIL ADDRESS:	
		STREET 1:		5430 LBJ FREEWAY
		STREET 2:		SUITE 1700
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75240

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	KRONOS INC
		DATE OF NAME CHANGE:	20030730
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0205</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2012-06-08</periodOfReport>

    <noSecuritiesOwned>1</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001257640</issuerCik>
        <issuerName>KRONOS WORLDWIDE INC</issuerName>
        <issuerTradingSymbol>KRO</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001552074</rptOwnerCik>
            <rptOwnerName>WILDENTHAL KERN</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>5430 LBJ FREEWAY, SUITE 1700</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>DALLAS</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>75240</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <footnotes></footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>A. Andrew R. Louis, Attorney-in-fact, for Kern Wildenthal</signatureName>
        <signatureDate>2012-06-12</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>poakw.htm
<DESCRIPTION>POWER OF ATTORNEY
<TEXT>
<HTML><BODY><PRE>POWER OF ATTORNEY

FOR EXECUTING FORMS 3, 4 AND 5



      Know all by these presents, that the undersigned hereby constitutes and

appoints each of J. Mark Hollingsworth, Robert D. Graham, and A. Andrew R.

Louis, signing singly, his/her true and lawful attorney-in-fact to:



(1) execute for and on behalf of the undersigned Forms 3, 4 and 5 in

accordance with Section 16(a) of the Securities Exchange Act of 1934, as amended

(the "Act"), and the rules thereunder;



(2) do and perform any and all acts for and on behalf of the undersigned that

may be necessary or desirable to complete the execution of any such Forms 3, 4

or 5 and the timely filing of such form with the United States Securities and

Exchange Commission and any other authority; and



(3) take any other action of any type whatsoever in connection with the

foregoing that in the opinion of such attorney-in-fact may be of benefit to, in

the best interest of, or legally required by, the undersigned, it being

understood that the documents executed by such attorney-in-fact on behalf of the

undersigned pursuant to this power of attorney shall be in such form and shall

contain such terms and conditions as such attorney-in-fact may approve in

his/her discretion.



      The undersigned hereby grants to each such attorney-in-fact full power and

authority to do and perform any and every act and thing whatsoever requisite,

necessary and proper to be done in the exercise of any of the rights and powers

herein granted, as fully to all intents and purposes as the undersigned might or

could do if personally present, with full power of substitution or revocation,

hereby ratifying and confirming all that such attorney-in-fact, or such

attorney-in-fact's substitute or substitutes, shall lawfully do or cause to be

done by virtue of this power of attorney and the rights and powers herein

granted.  The undersigned acknowledges that the foregoing attorneys-in-fact, in

serving such capacity at the request of the undersigned, are not assuming any of

the undersigned's responsibilities to comply with Section 16 of the Act.



      This power of attorney shall remain in full force and effect until the

undersigned is no longer required to file forms 3, 4 or 5 unless earlier revoked

by the undersigned in a signed writing delivered to the foregoing attorneys-in-

fact.



EXECUTED as of this 5th day of June 2012.



  /s/ Kern Wildenthal Signature





     Kern Wildenthal Printed Name



</PRE></BODY></HTML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
