September 2, 2014
Securities
and Exchange Commission
Office of Filings and Information Services
100 F Street, NE
Washington,
DC 20549
RE: Dreyfus Municipal Bond Opportunity Fund
1933
Act File No.: 33-7496
1940 Act File No.: 811-4764
CIK No.: 0000797923
Ladies and Gentlemen:
Pursuant to Rule 497(j) under the Securities Act of 1933, this is to certify that the form of the Prospectuses and Statement of Additional Information that would have been filed under paragraph (b) or (c) of this section does not differ from that contained in the most recent amendment, Post-Effective Amendment No. 46 to the Registration Statement, electronically filed with the Securities and Exchange Commission on August 27, 2014.
Please address any comments or questions to my attention at 212-922-6620.
Sincerely,
/s/ Judith C. Canonica
Judith C. Canonica
Paralegal