As filed with the Securities and Exchange Commission on June 16, 2017

Securities Act File No. 033-56094

Investment Company Act File No. 811-07428

U.S. SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM N-1A

Registration Statement Under The Securities Act Of 1933	☒
Pre-Effective Amendment No.	☐
Post-Effective Amendment No. 204	☒
and/or
Registration Statement Under The Investment Company Act Of 1940	☒
Amendment No. 205 (Check appropriate box or boxes)	☒

VOYA MUTUAL FUNDS

(Exact Name of Registrant Specified in Charter)

7337 E. Doubletree Ranch Road, Suite 100

Scottsdale, AZ 85258

(Address of Principal Executive Offices)

Registrant’s Telephone Number, Including Area Code: (800) 992-0180

Huey P. Falgout, Jr. Voya Investments, LLC 7337 E. Doubletree Ranch Road, Suite 100 Scottsdale, AZ 85258 (Name and Address of Agent for Service) With copies to: Elizabeth J. Reza Ropes & Gray LLP Prudential Tower
800 Boylston Street
Boston, MA 02199-3600

APPROXIMATE DATE OF PROPOSED PUBLIC OFFERING

It is proposed that this filing will become effective (check appropriate box):

☒	Immediately upon filing pursuant to paragraph (b)	☐	on (date), pursuant to paragraph (b)
☐	60 days after filing pursuant to paragraph (a)(1)	☐	on (date), pursuant to paragraph (a)(1)
☐	75 days after filing pursuant to paragraph (a)(2)	☐	on (date), pursuant to paragraph (a)(2) of Rule 485

If appropriate, check the following box:

☐ This post-effective amendment designated a new effective date for a previously filed post-effective amendment.

Title of Securities Being Registered: Shares of Beneficial Interest, without par value.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, as amended (the “1933 Act”), and the Investment Company Act of 1940, as amended, the Registrant certifies that it meets all the requirements for effectiveness of this Post-Effective Amendment No. 204 to its Registration Statement on Form N-1A pursuant to Rule 485(b) under the 1933 Act and has duly caused this Post-Effective Amendment No. 204 to its Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the city of Scottsdale and State of Arizona on the 16th day of June, 2017.

VOYA MUTUAL FUNDS
By:	/s/ Huey P. Falgout, Jr.
	Huey P. Falgout, Jr. Secretary

Pursuant to the requirements of the 1933 Act, this Post-Effective Amendment to the Registration Statement has been signed by the following persons in the capacities and on the date indicated.

Signature	Title	Date
	President, Chief Executive Officer and Interested Trustee	June 16, 2017
Shaun P. Mathews*
	Senior Vice President and Chief/Principal Financial Officer	June 16, 2017
Todd Modic*
	Trustee	June 16, 2017
Colleen D. Baldwin*
	Trustee	June 16, 2017
John V. Boyer*
	Trustee	June 16, 2017
Patricia W. Chadwick*
	Trustee	June 16, 2017
Peter S. Drotch*
	Trustee	June 16, 2017
Martin J. Gavin *
	Trustee	June 16, 2017
Russell H. Jones*
	Trustee	June 16, 2017
Patrick W. Kenny*

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	Trustee	June 16, 2017
Joseph E. Obermeyer*
	Trustee	June 16, 2017
Sheryl K. Pressler*
	Trustee	June 16, 2017
Christopher P. Sullivan*
	Trustee	June 16, 2017
Roger B. Vincent*

*By:	/s/ Huey P. Falgout, Jr.
	Huey P. Falgout, Jr.
	Attorney-in-Fact**

** Powers of attorney for Shaun Mathews, Todd Modic and each Director dated July 9, 2015 were filed as attachments to Post-Effective Amendment No. 190 to the Registrant’s Form N-1A Registration Statement on July 29, 2015 and are incorporated herein by reference. The Power of Attorney for Martin J. Gavin, dated August 1, 2015, was filed as an attachment to Post-Effective Amendment No. 193 to the Registrant’s Form N-1A Registration Statement on September 28, 2015 and is incorporated herein by reference. The Power of Attorney for Christopher P. Sullivan, dated October 1, 2015, was filed as an attachment to Post-Effective Amendment No. 194 to the Registrant’s N-1A Registration Statement on October 19, 2015 and incorporated herein by reference.

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EXHIBIT INDEX

Voya Mutual Funds

Exhibit No.	Description
EX-101.INS	XBRL Instance Document
EX-101.SCH	XBRL Taxonomy Extension Schema Document
EX-101.CAL	XBRL Taxonomy Extension Calculation Linkbase
EX-101.DEF	XBRL Taxonomy Extension Definition Linkbase
EX-101.LAB	XBRL Taxonomy Extension Labels Linkbase
EX-101.PRE	XBRL Taxonomy Extension Presentation Linkbase

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