[logo] PIONEER Investments(R)

VIA EDGAR

October 7, 2016

Securities and Exchange Commission
Division of Investment Management
100 F Street, NE
Washington, D.C. 20549

Re: SEC Staff Sarbanes-Oxley Review of Filings by Pioneer Series Trust V

Ladies and Gentlemen:

   This letter is to respond to comments received on September 8, 2016 from Ms.
Lauren Hamilton of the Staff of the Securities and Exchange Commission (the
"Commission") in connection with the Staff's review of financial statements and
other filings made by Pioneer Series Trust V (the "Registrant").

A. Edgar system

1.  Comment:   The Staff requested that the Registrant explain in its response
               why the status of Pioneer U.S. Corporate High Yield Fund is
               shown as "active" in the Edgar system, although the fund
               appears to be inactive.

    Response:  Pioneer U.S. Corporate High Yield Fund is shown as active in
               the Edgar system because, on July 21, 2016, the Registrant
               filed a post-effective amendment to its registration statement
               on Form N-1A pursuant to Rule 485(a) under the Securities Act
               of 1933, as amended, to register the Fund as a new series of
               the Registrant.

B. Funds' website

1.  Comment:   The Staff noted that the expense ratios shown on the funds'
               website reflect acquired fund fees and expenses in the gross
               expense ratios for certain funds but not in the net expense
               ratios for those funds. The Staff noted, as an example, the
               expense ratios shown on the funds' website for Pioneer Global
               Equity Fund (Class K gross: 0.99%, Class K net: 0.80%), as
               compared to the expense ratios shown in Pioneer Global Equity
               Fund's prospectus (Class K gross: 0.99%, Class K net:
               0.84%). The Staff requested that the Registrant add disclosure
               to the funds' website to clarify that the net expense ratios
               shown do not reflect acquired fund fees and expenses.

    Response:  The Registrant confirms that it will add disclosure to the
               fund's website to clarify that the net expense ratios shown do
               not reflect acquired fund fees and expenses.

C. Management Discussion of Fund Performance ("MDFP")



                                      2


1.  Comment:   The Staff noted that the expense ratios disclosed in the MDFP
               are from a fund's current prospectus. The Staff requested that
               the Registrant add disclosure to the MDFP in future shareholder
               reports referring the reader to the financial highlights for a
               more current expense ratio.

    Response:  The Registrant confirms that future shareholder reports will
               add disclosure in the MDFP referring the reader to the
               financial highlights for a more current expense ratio.

2.  Comment:   The Staff noted that the prospectus for Pioneer Global Equity
               Fund states that the minimum initial investment amount for
               Class K shares of the fund is $5 million. The Staff requested
               that the line graph for Class K shares in future shareholder
               reports start at $5 million in accordance with Instruction 1(d)
               of Item 27(b)(7) of Form N-1A.

    Response:  The Registrant confirms that in future shareholder reports the
               line graph for Class K shares will start at $5 million in
               accordance with Instruction 1(d) of Item 27(b)(7) of Form N-1A.

D. Schedule of Investments

1.  Comment:   The Staff requested that the schedule of investments included
               in future Form N-CSR and N-Q filings include, for each variable
               rate security: (i) a description of the reference rate and
               spread; and (ii) either (a) the end of period interest rate for
               the security or (b) a note to the schedule of investments that
               includes the end of period interest rate for each reference
               rate described in the schedule.

    Response:  The Registrant understands that disclosure similar to that
               requested by the Staff was included in the proposed Investment
               Company Modernization rule amendments. Accordingly, the
               Registrant will consider making this disclosure in future
               reports.

E. Notes to the Financial Statements

1.  Comment:  The Staff requested that the Registrant add a statement to the
              notes to the financial statements included in future shareholder
              reports stating that the funds follow the accounting and
              reporting requirements for investment companies under FASB
              Accounting Standards Codification Topic 946.

Response:     The Registrant will add disclosure to the financial statements
              included in future reports to address the Staff's comment.

F. Form 40-17G

1.  Comment:   The Staff noted that the most recent Form 40-17G filed by the
               Registrant addressed the Registrant's fidelity bond coverage
               for the period July 31, 2015 through July 31, 2016. The Staff
               requested that the Registrant confirm in its response that the
               funds currently have adequate fidelity bond coverage in
               accordance with Rule 17g-1 under the Investment Company Act of
               1940, as amended (the "1940 Act") and that the Registrant has
               filed appropriate documentation of such coverage in accordance
               with Rule 17g-1.

    Response:  The Registrant confirms that the funds currently have adequate
               fidelity bond coverage in accordance with Rule 17g-1 under the
               1940 Act and that the Registrant has filed appropriate
               documentation of such coverage in accordance with Rule 17g-1. On



                                      3

               September 19, 2016, the Registrant filed its most recent Form
               40-17G for the period July 31, 2016 through July 31, 2017.

G. Semi-Annual Reports:

1.  Comment:   The Staff noted that the Registrant filed semi-annual reports
               using Edgar code "N-CSR." The Staff requested that the
               Registrant file future semi-annual reports using Edgar code
               "N-CSRS" to indicate that such reports are semi-annual reports.

    Response:  The Registrant confirms it will file future semi-annual reports
               using Edgar code "N-CSRS" to indicate that such reports are
               semi-annual reports.

   Please contact me directly at 617-422-4468 if you require any further
clarification.

                                                  Very truly yours,

                                                  /s/ Mark E. Bradley
                                                  --------------------
                                                  Mark E. Bradley

                                                  Treasurer, Pioneer Funds

cc: Michael Melnick
    Christopher Frazier
    Christopher Kelley
    Thomas Reyes