Fidelity (logo) Investments®||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Fidelity Management & Research Company
82 Devonshire Street
Boston MA 02109-3614
617 563 7000

|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| January 31, 2012

U.S. Securities & Exchange Commission

100 F Street, N.E.

Washington, D.C. 20549

Attention: File Room

Re:	Fidelity Mt. Vernon Street Trust (the trust):
	Fidelity 130/30 Large Cap Fund
	Fidelity Growth Company Fund
	Fidelity Growth Strategies Fund
	Fidelity New Millennium Fund (the funds)
	File Nos. 002-79755 and 811-03583

__________________________________________________________________________

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/ Scott C. Goebel
	Scott C. Goebel
	Secretary of the Trust