NATIONWIDE MUTUAL FUNDS

Nationwide Bailard Cognitive Value Fund

Nationwide Bailard Technology & Science Fund

Nationwide Diamond Hill Large Cap Concentrated Fund

Nationwide Fund

Nationwide Geneva Mid Cap Growth Fund

Nationwide Geneva Small Cap Growth Fund

Nationwide Long/Short Equity Fund

Nationwide Loomis All Cap Growth Fund

Nationwide Mellon Disciplined Value Fund

Nationwide Mellon Dynamic U.S. Core Fund (formerly, Nationwide Dynamic U.S. Growth Fund)

Nationwide Small Company Growth Fund

Nationwide U.S. Small Cap Value Fund

Nationwide WCM Focused Small Cap Fund

Nationwide Ziegler Equity Income Fund

Supplement dated June 5, 2020

to the Prospectus dated February 28, 2020

Capitalized terms and certain other terms used in this supplement, unless otherwise defined in this supplement, have the meanings assigned to them in the Prospectus.

Effective immediately, all references to, and information regarding, Micah Martin, CFA in the Prospectus are deleted in their entirety.

PLEASE RETAIN THIS SUPPLEMENT FOR FUTURE REFERENCE