FIDELITY (LOGO) INVESTMENTS(registered trademark) FMR Corp.
82 Devonshire Street
Boston MA 02109-3614
617 563 7000
June 4, 1997
Securities and Exchange Commission
Judiciary Plaza
450 Fifth Street, N.W.
Washington, D.C. 20549
Attention: File Room
Re: Fidelity Money Market Trust (the trust):
Rated Money Market (the fund)
File Nos. 2-62417 and 811-2861
__________________________________________________________________________
Ladies and Gentlemen:
Transmitted herewith pursuant to Rule 497(j) under the Securities Act of
1933 is certification that the Prospectuses and Statement of Additional
Information with respect to the above referenced fund does not differ from
those filed in the most recent post-effective amendment, which was filed
electronically.
Very truly yours,
/s/Arthur S. Loring
Arthur S. Loring
Secretary