1933 Act File No. 333-40455
1940 Act File No. 811-08495
AS FILED WITH THE U.S. SECURITIES AND EXCHANGE COMMISSION ON SEPTEMBER 14, 2018
U.S. SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM N-1A
REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933	[X]
Post-Effective Amendment No. 240	[X]
and/or
REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940	[X]
Amendment No. 241	[X]
(Check appropriate box or boxes)
NATIONWIDE MUTUAL FUNDS
(EXACT NAME OF REGISTRANT AS SPECIFIED IN CHARTER)
ONE NATIONWIDE PLAZA MAIL CODE 05-02-210
COLUMBUS, OHIO 43215
(ADDRESS OF PRINCIPAL EXECUTIVE OFFICE) (ZIP CODE)
Registrant's Telephone Number, including Area Code: (614) 435-5787

Send Copies of Communications to:
ALLAN J. OSTER, ESQ.	PRUFESH R. MODERA, ESQ.
10 WEST NATIONWIDE BOULEVARD	STRADLEY RONON STEVENS & YOUNG, LLP
COLUMBUS, OHIO 43215	1250 CONNECTICUT AVENUE, N.W., SUITE 500
(NAME AND ADDRESS OF AGENT FOR SERVICE)	WASHINGTON, DC 20036

It is proposed that this filing will become effective: (check appropriate box)
[   ]	immediately upon filing pursuant to paragraph (b)
[X]	On September 24, 2018 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:
[X]	This post-effective amendment designates a new effective date for a previously filed post-effective amendment.

EXPLANATORY NOTE

Pursuant to Rule 485(b)(1)(iii) of the Securities Act of 1933, as amended, this Post-Effective Amendment Nos. 240/241 to the Registration Statement for Nationwide Mutual Funds (the "Registrant") is being filed solely for the purpose of delaying the effectiveness of Post-Effective Amendment Nos. 237/238 ("PEA 237/238"), which was filed with the U.S. Securities and Exchange Commission via the EDGAR system pursuant to Rule 485(a)(1) on July 19, 2018 (Accession Number 0001193125-18-221263). Accordingly, the Parts A, B and C of the Registrant as filed on Form N-1A in PEA 237/238 are incorporated herein by reference in their entirety into this filing. This Amendment is being filed for the purpose of delaying the effectiveness of PEA 237/238 until September 24, 2018.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, as amended, and the Investment Company Act of 1940, as amended, the Registrant certifies that it meets all of the requirements for effectiveness of this Registration Statement pursuant to Rule 485(b) under the Securities Act of 1933, and has duly caused this Post-Effective Amendment Nos. 240/241 to the Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the city of Columbus, and State of Ohio, on this 14^th day of September, 2018.

NATIONWIDE MUTUAL FUNDS
BY:	/s/ Allan J. Oster
	Allan J. Oster, Attorney-In-Fact for Registrant

PURSUANT TO THE REQUIREMENTS OF THE SECURITIES ACT OF 1933, THIS REGISTRATION STATEMENT HAS BEEN SIGNED BELOW BY THE FOLLOWING PERSONS IN THE CAPACITIES INDICATED.

Signature & Title

/s/ Michael S. Spangler*

Michael S. Spangler, President, Chief

Executive Officer and Principal Executive Officer

/s/ Joseph Finelli*

Joseph Finelli, Treasurer, Principal

Financial Officer and Vice President

/s/ Charles E. Allen*

Charles E. Allen, Trustee

/s/ Paula H.J. Cholmondeley*

Paula H.J. Cholmondeley, Trustee

/s/ Phyllis Kay Dryden*

Phyllis Kay Dryden, Trustee

/s/ Barbara I. Jacobs*

Barbara I. Jacobs, Trustee

/s/ Keith F. Karlawish*

Keith F. Karlawish, Trustee

/s/ Carol A. Kosel*

Carol A. Kosel, Trustee

/s/ Douglas F. Kridler*

Douglas F. Kridler, Trustee

/s/ Lydia M. Marshall*

Lydia M. Marshall, Trustee

/s/ David C. Wetmore*

David C. Wetmore, Trustee and Chairman

*BY:	/s/ Allan J. Oster
	Allan J. Oster, Attorney-In-Fact