U.S. BANCORP FUND SERVICES, LLC

615 E. Michigan Street

Milwaukee, WI  53202

August 1, 2017

VIA EDGAR TRANSMISSION

United States Securities and Exchange Commission

Division of Investment Management

100 F Street, N.E.

Washington, D.C. 20549

Re:	Buffalo Funds (the “Trust”)

Securities Act Registration No: 333-56018

Investment Company Act Registration No: 811-10303

Dear Sir or Madam:

Pursuant to Rule 497(j) under the Securities Act of 1933 (the “1933 Act”), as amended, and pursuant to the Investment Company Act of 1940, as amended, and the regulations thereunder, the Trust, on behalf of its series, Buffalo Discovery Fund, Buffalo Dividend Focus Fund, Buffalo Emerging Opportunities Fund, Buffalo Flexible Income Fund, Buffalo Growth Fund, Buffalo High Yield Fund, Buffalo International Fund, Buffalo Large Cap Fund, Buffalo Mid Cap Fund and Buffalo Small Cap Fund (each a “Fund” and collectively, the “Funds”), hereby certifies that the form of Prospectus and Statement of Additional Information that would have been filed under Rule 497(b) or (c) under the 1933 Act would not have differed from that contained in the most recent amendment for the Funds dated July 29, 2017, and filed electronically as Post-Effective Amendment No. 52 to the Fund’s Registration Statement on Form N-1A on July 27, 2017.

Please direct any inquiries regarding this filing to me at (414) 765-5208.  Thank you for your assistance with respect to this matter.

Sincerely,

Rachel A. Spearo, Esq.

For US Bancorp Fund Services, LLC