Exhibit 32.1


                                  CERTIFICATION
                       PURSUANT TO 18 U.S.C. SECTION 1350,
           AS ADOPTED BY SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002



       I, Ian M. Cumming,  as Chairman of the Board and Chief Executive  Officer
of Leucadia National Corporation (the "Company") certify,  pursuant to 18 U.S.C.
ss. 1350, as adopted pursuant to Section 906 of the  Sarbanes-Oxley Act of 2002,
that to my knowledge:

       (1) the accompanying Form 10-Q report for the period ending June 30, 2005
as filed with the U.S.  Securities and Exchange  Commission (the "Report") fully
complies  with the  requirements  of  Section  13(a) or 15(d) of the  Securities
Exchange Act of 1934, as amended; and

       (2) the  information  contained  in the Report  fairly  presents,  in all
material  respects,  the  financial  condition  and results of operations of the
Company.



Dated:  August 8, 2005



                                     By: /s/ Ian M. Cumming
                                         --------------------------
                                         Ian M. Cumming
                                         Chairman of the Board and
                                         Chief Executive Officer