EXHIBIT 23.1





            CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM


We hereby  consent to the  incorporation  by reference  in the (i)  Registration
Statement  No.  333-113425  on Form  S-8 and  (ii)  Registration  Statement  No.
333-122249 on Form S-3 of Kronos  Worldwide,  Inc. of our report dated March 16,
2006 relating to the  consolidated  financial  statements,  financial  statement
schedules, management's assessment of the effectiveness of internal control over
financial  reporting and the  effectiveness  of internal  control over financial
reporting, which appears in this Form 10-K.





PricewaterhouseCoopers LLP



Dallas, Texas
March 16, 2006