WASHINGTON, DC 20549



                                    FORM 8-K



                                 CURRENT REPORT



                Pursuant to Section 13 or 15(d) of the Securities
                              Exchange Act of 1934



                        Date of Report: November 4, 2005




                             KRONOS WORLDWIDE, INC.
             (Exact name of Registrant as specified in its charter)



   Delaware                         1-31763                     76-0294959
(State or other                   (Commission                 (IRS Employer
 jurisdiction of                  File Number)                Identification
 incorporation)                                                     No.)



   5430 LBJ Freeway, Suite 1700, Dallas, TX                75240-2697
   (Address of principal executive offices)                (Zip Code)



                                 (972) 233-1700
              (Registrant's telephone number, including area code)



             (Former name or address, if changed since last report)


                                     



Check  the  appropriate  box  below  if the  Form  8-K  filing  is  intended  to
simultaneously  satisfy the filing obligation of the registrant under any of the
following provisions (see General Instruction A.2):

[   ]   Written communications pursuant to Rule 425 under the Securities 
        Act (17 CFR 230.425)

[   ]   Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 
        CFR 240.14a-12)

[   ]   Pre-commencement   communications   pursuant  to  Rule  14d-2(b)  under 
        the  Exchange  Act  (17  CFR  240.14d-2(b))

[   ]   Pre-commencement   communications   pursuant  to  Rule  13e-4(c)  under
        the  Exchange  Act  (17  CFR  240.13e-4(c))





Item 2.02           Results of Operations and Financial Condition.
Item 7.01           Regulation FD Disclosure.

         Pursuant to Items 2.02 and 7.01 of this current report,  the registrant
hereby  furnishes  the  information  set  forth in its press  release  issued on
November  4,  2005,  a copy of which is  attached  hereto  as  Exhibit  99.1 and
incorporated herein by reference.

         The  information,  including the exhibit,  the registrant  furnishes in
this report is not deemed  "filed" for purposes of section 18 of the  Securities
Exchange Act of 1934, as amended,  or otherwise  subject to the  liabilities  of
that  section.  Registration  statements  or  other  documents  filed  with  the
Securities and Exchange  Commission  shall not incorporate  this  information by
reference, except as otherwise expressly stated in such filing.

Item 9.01          Financial Statements and Exhibits.

                   (c) Exhibits.

                   Item No.        Exhibit Index
                   ----------      ----------------------------------------
                   99.1            Press Release dated November 4, 2005 issued 
                                   by the registrant.






                                    SIGNATURE


         Pursuant to the requirements of the Securities Exchange Act of 1934,
the registrant has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.

                                                 KRONOS WORLDWIDE, INC.
                                                 (Registrant)




                                                 By:   /s/ Gregory M. Swalwell
                                                       -------------------------
                                                       Gregory M. Swalwell
                                                       Vice President, Finance




Date:  November 4, 2005







                                INDEX TO EXHIBITS


Exhibit No.     Description
-----------     --------------------------------------------------

99.1            Press release dated November 4, 2005 issued by Kronos Worldwide,
                Inc.