FIDELITY (LOGO) FMR Corp. 82 Devonshire
INVESTMENTS(registered Street Boston MA 02109-3614
trademark) 617 563 7000
February 2, 2000
Securities and Exchange Commission
Judiciary Plaza
450 Fifth Street, N.W.
Washington, D.C. 20549
Attention: File Room
Re: Fidelity Mt. Vernon Street
Trust (the trust):
Fidelity Growth Company Fund
Fidelity Aggressive Growth
Fund (Formerly Fidelity
Emerging Growth Fund)
Fidelity New Millennium Fund
(the funds)
File Nos. 2-79755 and 811-3583
______________________________________________________________________
Ladies and Gentlemen:
Transmitted herewith pursuant to Rule 497(j) under the Securities Act
of 1933 is certification that the Prospectuses and Statements of
Additional Information with respect to the above referenced funds do
not differ from those filed in the most recent post-effective
amendment, which was filed electronically.
Very truly yours,
/s/Eric D. Roiter
Eric D. Roiter
Secretary
