BSPK Bespoke Extracts Inc (QB)

[logo] PIONEER Investments(R)

March 5, 2014

VIA ELECTRONIC TRANSMISSION

U.S. Securities and Exchange Commission
File Desk
100 F Street, N.E.
Washington, D.C. 20549

Re: Pioneer Series Trust VI (the "Trust")
File Nos. 333-138560 and 811-21978)
CIK No. 0001380192

Ladies and Gentlemen:

Pursuant to Rule 497(j) under the Securities Act of 1933, as amended, I certify that the forms of the prospectuses and statements of additional information for Pioneer Floating Rate Fund and Pioneer Multi-Asset Real Return Fund, each a series of the Trust, which would have been filed under paragraph (c) of Rule 497, do not differ from those contained in Post-Effective Amendment No. 25 to the Trust's registration statement on Form N-1A, filed electronically on February 28, 2014 (Accession No. 0001094521-14-000008).

If you have any questions concerning the foregoing certification, please contact me at (617) 422-4388.

Very truly yours,

/s/ Daniel J. Hynes
-------------------------
    Daniel J. Hynes
    Senior Legal Product Manager

cc: Christopher J. Kelley, Esq.
Toby R. Serkin, Esq.

Pioneer Investment Management, Inc.
60 State Street
Boston, MA 02109-1820

"Member of the UniCredit S.p.A. banking group"

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