VOYA INVESTMENT MANAGEMENT

7337 EAST DOUBLETREE RANCH ROAD, SUITE 100

SCOTTSDALE, AZ 85258

April 7, 2017

VIA EDGAR

U.S. Securities and Exchange Commission

Division of Investment Management

100 F Street, N.E.

Washington, D.C. 20549

Re:   Voya Mutual Funds (“Registrant”)

  SEC File Nos. 33-56094; 811-7428

Ladies and Gentlemen:

On behalf of Voya Mutual Funds and pursuant to Rule 497(e) under the Securities Act of 1933, as amended, attached for filing are exhibits containing interactive data format risk/return summary information that mirrors the risk/return summary information in a supplement, dated March 17, 2017, to the Prospectuses for Voya Mutual Funds.

The purpose of the filing is to submit the 497(e) filing dated March 17, 2017 in XBRL for Voya Mutual Funds.

If you have any questions concerning the attached filing, please contact Jay Stamper at (480) 477-2660 or the undersigned at (480) 477-2649.

Very truly yours,

/s/ Paul A. Caldarelli                    

Paul A. Caldarelli

Vice President and Senior Counsel

Voya Investment Management

Attachment

cc: Huey P. Falgout, Jr., Esq.

Voya Investments, LLC

Elizabeth J. Reza

Ropes & Gray LLP