FEDERATED MUNICIPAL OPPORTUNITIES FUND, INC.

                               Federated Investors Funds
                                 5800 Corporate Drive
                          Pittsburgh, Pennsylvania 15237-7000

                                   October 29, 2001


EDGAR Operations Branch
Securities and Exchange Commission
Division of Investment Management
450 Fifth Street, Northwest
Washington, DC  20549

     RE: FEDERATED MUNICIPAL OPPORTUNITIES FUND, INC. (the "Fund")
            Class A Shares
            Class B Shares
            Class C Shares
            Class F Shares
           1933 Act File No. 33-11410
           1940 Act File No. 811-4533

Dear Sir or Madam:

     Pursuant to Rule 497(j) of the Securities Act of 1933, the above-referenced
Fund hereby  certifies that the definitive  forms of Prospectuses and Statements
of Additional  Information  dated  October 31, 2001,  that would have been filed
under Rule 497(c),  do not differ from the forms of Prospectuses  and Statements
of Additional  Information  contained in the most recent Registration  Statement
for the Fund. This Registration  Statement was  electronically  filed under Rule
485(b) as Post-Effective amendment No. 26 on October 25, 2001.

     If you have any questions regarding this  certification,  please contact me
at (412) 288-7404.

                                                Very truly yours,



                                                /s/ Leslie K. Ross
                                                Leslie K. Ross
                                                Assistant Secretary