Oppenheimer MONEY MARKET Fund, INC.
                    Supplement dated January 2, 2003 to the
          Statement of Additional Information dated September 24, 2002

      The Statement of Additional Information is changed as follows:

1.    Effective  December 31, 2002,  Mr. Leon Levy resigned as a Director of the
    Fund  and  Mr.  Clayton  Yeutter  was  elected  as  Chairman  of the  Board,
    effective   January  1,  2003.   Therefore,   the  Statement  of  Additional
    Information  is revised by deleting  the  biography  for Mr. Levy on page 13
    and by adding the  following to Mr.  Yeutter's  biography:  "Chairman of the
    Board of Directors."

2.    In the  Director  compensation  table on page 18, the title of  "Chairman"
    after Mr.  Levy's name is deleted and the title of "Chairman" is added after
    Mr. Yeutter's name. In addition,  the following  footnote is added following
    Mr. Levy's name and following Mr. Yeutter's name:

      6.  Effective  January 1, 2003,  Clayton  Yeutter became Chairman of
          the Board of Directors of the Board I Funds upon the  retirement
          of Leon Levy.

3.    The  following is added at the end of the second  paragraph in the section
    titled "The Investment Advisory Agreement" starting on page 19:

          "With the addition of a new  breakpoint,  effective  December 12,
          2002,  those rates are  currently as follows:  0.45% of the first
          $500  million of  aggregate  net assets;  0.425% of the next $500
          million  of net  assets;  0.40% of the next $500  million  of net
          assets;  0.375% of the next $1.5 billion of net assets; and 0.35%
          of average annual net assets in excess of $3.0 billion."









January 2, 2003                                             PX200.009