Nationwide Ziegler Wisconsin Tax Exempt Fund   Summary Prospectus March 1, 2015

Class/Ticker A NWJWX C NWKGX Institutional Class NWJYX Institutional Service Class NWJZX

Before you invest, you may want to review the Fund’s Prospectus, which contains information about the Fund and its risks. The Fund’s Prospectus and Statement of Additional Information, both dated March 1, 2015, are incorporated by reference into this Summary Prospectus. For free paper or electronic copies of the Fund’s Prospectus and other information about the Fund, go to nationwide.com/mutualfundprospectuses, email a request to web_help@nationwide.com or call 800-848-0920, or ask any financial advisor, bank, or broker-dealer who offers shares of the Fund.

Objective

The Fund seeks to provide investors with a high level of current income that is exempt from federal income tax and Wisconsin personal income tax.

Fees and Expenses

This table describes the fees and expenses you may pay when buying and holding shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Nationwide Funds. More information about these and other discounts is available from your financial professional and in “Investing with Nationwide Funds” commencing on page 38 of the Prospectus and in “Additional Information on Purchases and Sales” commencing on page 78 of the Statement of Additional Information.

	Class A Shares	Class C Shares	Institutional Class Shares	Institutional Service Class  Shares
Shareholder Fees (fees paid directly from your investment)
Maximum Sales Charge (Load) imposed on purchases (as a percentage of offering price)	2.25%	None	None	None
Maximum Deferred Sales Charge (Load) (as a percentage of offering or sale price, whichever is less)	None	1.00%	None	None
Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Management Fees	0.50%	0.50%	0.50%	0.50%
Distribution and/or Service (12b-1) Fees	0.25%	0.75%	None	None
Other Expenses1	0.26%	0.25%	0.21%	0.24%
Total Annual Fund Operating Expenses	1.01%	1.50%	0.71%	0.74%
Fee Waiver/Expense Reimbursement2	(0.11)%	(0.15)%	(0.11)%	(0.09)%
Total Annual Fund Operating Expenses After Fee Waiver/Expense Reimbursement	0.90%	1.35%	0.60%	0.65%

1 “Other expenses” has been restated to reflect current fees.

2 Nationwide Mutual Funds (the “Trust”) and Nationwide Fund Advisors (the “Adviser”) have entered into a written contract limiting annual fund operating expenses to 0.90% for Class A shares, 1.35% for Class C shares, 0.60% for Institutional Class shares, and 0.65% for Institutional Service Class shares until at least February 29, 2016. Under the expense limitation agreement, the level to which operating expenses are limited excludes any taxes, interest, brokerage commissions, acquired fund fees and expenses, short-sale dividend expenses, other expenses which are capitalized in accordance with generally accepted accounting principles and expenses incurred by the Fund in connection with any merger or reorganization, and may exclude other nonroutine expenses not incurred in the ordinary course of the Fund’s business. The expense limitation agreement may be changed or eliminated only with the consent of the Board of Trustees of the Trust. The Trust is authorized to reimburse the Adviser for management fees previously waived and/or for expenses previously paid by the Adviser, provided, however, that any reimbursements must be paid at a date not more than three years after the fiscal year in which the Adviser waived the fees or reimbursed the expenses and the reimbursements do not cause the Fund to exceed the expense limitation that was in place at the time the Adviser waived the fees or reimbursed the expenses.

SP-HM-WITE (3/15)

Summary Prospectus March 1, 2015 1 Nationwide Ziegler Wisconsin Tax Exempt Fund

Example

This Example is intended to help you to compare the cost of investing in the Fund with the cost of investing in other mutual funds.

The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then sell all of your shares at the end of those time periods. It assumes a 5% return each year and no change in expenses. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

	1 Year		3 Years		5 Years		10 Years
Class A shares		$315		$529		$760		$1,424
Class C shares		237		459		804		1,778
Institutional Class shares		61		216		384		872
Institutional Service Class shares		66		228		403		910

You would pay the following expenses on the same investment if you did not sell your shares:

	1 Year		3 Years		5 Years		10 Years
Class C shares		$137		$459		$804		$1,778

Portfolio Turnover

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs. These costs, which are not reflected in Annual Fund Operating Expenses or in the Example, affect the Fund’s performance. During the Fund’s most recent prior fiscal year ended July 31, 2014, the Fund’s portfolio turnover rate was 8.61% of the average value of its portfolio, and during the most recent fiscal period (August 1, 2014 through October 31, 2014, the Fund’s new fiscal year end), the Fund’s portfolio turnover rate was 0.76% of the average value of its portfolio.

Principal Investment Strategies

Under normal market conditions, the Fund invests at least 80% of its net assets in municipal securities issued by the State of Wisconsin, its municipalities, other political subdivisions and public authorities of Wisconsin and similar obligations of other agencies and entities that pay interest that, in the opinion of bond counsel to the issuer, is exempt from federal income tax and Wisconsin personal income tax (including territories and possessions of the United States and their political subdivisions and political authorities, and certain other governmental issuers) and also from federal and applicable Wisconsin alternative minimum taxes.

Debt obligations issued by or on behalf of a state or territory or its agencies, instrumentalities, municipalities and political subdivisions and certain other governmental issuers, the interest on which is exempt from federal income tax, are referred to as “tax exempt obligations.”

When the subadviser is unable to find a sufficient supply of qualifying tax exempt obligations issued in Wisconsin that the subadviser believes could be good investments for the Fund, the subadviser may invest more than 25% of the Fund’s net assets in debt obligations issued by or on behalf of Puerto Rico, Guam, the U.S. Virgin Islands, American Samoa, the Northern Mariana Islands and their municipalities and other political subdivisions and public authorities, the income from which, in the opinion of bond counsel to the issuer, is exempt from federal income tax and Wisconsin personal income tax. The Fund does not seek to

concentrate its investments in any particular industry and generally will not invest more than 25% of its net assets in tax exempt obligations payable from the revenues of any single industry. However, when the subadviser is unable to find a sufficient supply of other qualifying tax exempt obligations, it may invest more than 25% of the Fund’s net assets in tax-exempt bonds payable from the revenues of any of the housing, healthcare or utilities industries.

The Fund invests primarily in tax exempt obligations that are rated investment-grade (the four highest rating categories of nationally recognized statistical ratings organizations) at the time of purchase (i.e., at least Baa3/BBB-) or that are unrated but that the subadviser determines, at the time of purchase, are of comparable quality to obligations rated investment-grade.

The Fund may invest up to 20% of its net assets in tax exempt obligations that are rated below investment-grade (but not rated below B) and in unrated bonds that the subadviser determines, at the time of purchase, to be of comparable quality (these below investment-grade obligations are sometimes referred to as “junk bonds” or high-yield bonds).

It is possible that, after the Fund purchases a tax exempt obligation that meets its credit quality standards, the obligation may be downgraded or the subadviser may reassess its view of the issuer’s credit quality. The subadviser will consider such an event in determining whether the Fund should continue to hold the obligation, but will not automatically dispose of the obligation solely because it has been downgraded. However, if such a downgrade causes more than 5% of the Fund’s total assets to be invested in tax exempt obligations that do not meet the Fund’s minimum credit standards, then the subadviser may sell some of the lower quality tax exempt obligations so that less than 5% of the Fund’s total assets are invested in such obligations.

In analyzing rated and unrated tax exempt obligations, the subadviser obtains and reviews available information on the creditworthiness of the parties obligated to make principal and interest payments (including any parties who guarantee the borrower’s payment obligations). The subadviser also considers various qualitative factors and trends that affect tax exempt obligations generally. A significant portion of the credit ratings of the tax exempt obligations held by the Fund are enhanced by insurance.

Principal Risks

The Fund cannot guarantee that it will achieve its investment objective.

As with any fund, the value of the Fund’s investments—and therefore, the value of Fund shares—may fluctuate. These changes may occur because of:

Interest rate risk – generally, when interest rates go up, the value of fixed-income securities goes down. Prices of longer-term securities generally change more in response to interest rate changes than prices of shorter-term securities. To the extent the Fund invests a substantial portion of its assets in fixed-income securities with longer-term maturities, rising interest rates are more likely to cause the value of the Fund’s investments to decline significantly.

Credit risk – a bond issuer may be unable to pay the interest or principal when due. If an issuer defaults, the Fund may lose money. This risk is particularly high for high-yield bonds. Changes in a bond issuer’s credit rating or the market’s perception of an issuer’s creditworthiness may also affect the value of a bond.

Summary Prospectus March 1, 2015 2 Nationwide Ziegler Wisconsin Tax Exempt Fund

Although a significant portion of the credit ratings of the tax exempt obligations held by the Fund are enhanced by insurance, the ability of the insurer to pay principal and interest in the event of default by the issuer cannot be assured.

Market and selection risks – market risk is the risk that one or more markets in which the Fund invests will go down in value, including the possibility that the markets will go down sharply and unpredictably. Selection risk is the risk that the securities selected by the Fund’s management will underperform the markets, the relevant indices or the securities selected by other funds with similar investment objectives and investment strategies. This means you may lose money.

High-yield bonds risk – investing in high-yield bonds and other lower-rated bonds will subject the Fund to substantial risk of loss due to issuer default, decline in market value due to adverse economic and business developments, or sensitivity to changing interest rates.

Liquidity risk – when there is little or no active trading market for specific types of securities or instruments, it can become more difficult to sell the securities or instruments at or near their perceived value. An inability to sell a portfolio position can adversely affect the Fund’s value or prevent the Fund from being able to take advantage of other investment opportunities. Liquidity risk also includes the risk that the Fund will experience significant net redemptions of its shares at a time when it cannot find willing buyers for its portfolio securities or can only sell its portfolio securities at a material loss. To meet redemption requests, the Fund may be forced to sell other securities or instruments that are more liquid, but at unfavorable times and conditions.

Prepayment and call risk – certain bonds will be paid off by the issuer more quickly than anticipated. If this happens, the Fund may be required to invest the proceeds in securities with lower yields.

Geographic concentration risk – the Fund normally will invest significant portions of its assets in several specific geographic areas, including Wisconsin and, to a lesser extent, U.S. territories, for example, Puerto Rico, Guam, the U.S. Virgin Islands, American Samoa and the Northern Mariana Islands. Political, legislative, business and economic conditions and developments within these areas will affect the Fund’s performance, because the Fund’s investments primarily will be made in those geographic territories. For example, the Fund may be affected significantly by economic, regulatory or political developments affecting the ability of municipal issuers in these jurisdictions to pay interest or repay principal. Future political and economic developments, constitutional amendments, legislative measures, executive orders, administrative regulation, litigation or voter initiatives could have an adverse effect on the debt obligations of municipal issuers. By concentrating its investments in bonds issued in specific geographic areas, the Fund’s credit risk is more dependent on the ability of the territory or state and its cities and municipalities to make timely payments on their obligations.

Concentration risk – the risk associated with exposure to any one industry or sector. Any economic, business, political and other changes that affect one such revenue bond potentially could affect other revenue bonds in the same industry segment. The resulting industry concentration could increase the Fund’s market risk or credit risk, or both.

Limited supply risk – only limited categories of tax exempt obligations are exempt from both federal income tax and Wisconsin personal income tax. Because there are limited categories of these

double tax exempt bonds, the Fund may not always be able to invest its assets in tax exempt obligations issued in Wisconsin.

Alternative minimum tax risk – the Fund may invest up to 20% of its total assets in municipal securities that generate interest which is subject to alternative minimum tax (“AMT”). As a result, taxpayers who are subject to the AMT potentially could earn a lower after-tax return.

Nondiversified fund risk – the Fund is a “nondiversified” fund under the Investment Company Act of 1940. Compared with other funds, the Fund may invest a greater percentage of its assets in a particular issuer, and thereby have greater exposure to risks associated with an individual issuer.

If the value of the Fund’s investments goes down, you may lose money.

Performance

The Fund has adopted the historical performance of the HighMark Wisconsin Tax-Exempt Fund, a former series of HighMark Funds (the “Predecessor Fund”) as the result of a reorganization in which the Fund acquired all of the assets, subject to the liabilities, of the Predecessor Fund on September 16, 2013. The returns presented for periods prior to September 16, 2013 reflect the performance of the Predecessor Fund. The returns presented for periods prior to June 8, 2009 are based on the performance of the North Track Wisconsin Tax-Exempt Fund (the “Prior Predecessor Fund”), which was acquired as the result of a reorganization between the Predecessor Fund and the Prior Predecessor Fund. The Fund and the Predecessor Fund have substantially similar investment goals and strategies.

The following bar chart and table can help you evaluate the Fund’s potential risks. The bar chart shows how the Fund’s annual total returns have varied from year to year. These returns do not reflect the impact of sales charges. If sales charges were reflected, the annual total returns would be lower than those shown. The table compares the Fund’s average annual total returns to the returns of a broad-based securities index. Remember, however, that past performance (before and after taxes) is not necessarily indicative of how the Fund will perform in the future. Updated performance information is available at no cost by visiting nationwide.com/mutualfunds or by calling 800-848-0920.

Annual Total Returns – Class A Shares

(Years Ended December 31,)

Best quarter:    6.32% – 3rd qtr. 2009

Worst quarter:    -3.92% – 4th qtr. 2010

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After-tax returns are shown for Class A shares only and will vary for other classes. After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect state and local taxes. Your actual after-tax return depends on your personal tax situation and may differ from what is shown here. After-tax returns are not relevant to investors in tax-deferred arrangements, such as individual retirement accounts, 401(k) plans or certain other employer-sponsored retirement plans.

Historical performance for Class A, Class C and Institutional Service Class shares is based on the previous performance of Class A, Class C and Fiduciary Shares, respectively, of the Predecessor Fund. The performance of Fiduciary Shares for the period from June 8, 2009 to August 3, 2010 was based on the performance of Class A Shares of the Predecessor Fund and, for the period prior to June 8, 2009, of Class A shares of the Prior Predecessor Fund. The performance of the Predecessor Fund’s Fiduciary Shares had been adjusted because Class A Shares of the Predecessor Fund and the Prior Predecessor Fund bore a sales charge while Fiduciary Shares did not bear a sales charge. However, the performance of the Predecessor Fund’s Fiduciary Shares was not adjusted to reflect that share class’s lower expenses than those of Class A Shares of the Predecessor Fund and the Prior Predecessor Fund.

The Fund commenced offering Institutional Class shares on September 18, 2013. Therefore, pre-inception historical performance of Institutional Class shares is based on the previous performance of the Predecessor Fund’s Fiduciary Shares. Performance for Institutional Class shares has not been adjusted to reflect that share class’s lower expenses than those of the Predecessor Fund’s Fiduciary Shares.

Average Annual Total Returns

For the Periods Ended December 31, 2014

	1 Year		5 Years		10 Years
Class A shares – Before Taxes		3.16%		2.40%		2.83%
Class A shares – After Taxes on Distributions		3.15%		2.39%		2.82%
Class A shares – After Taxes on Distributions and Sales of Shares		3.07%		2.58%		2.94%
Class C shares		4.08%		2.41%		2.48%
Institutional Class shares		5.86%		3.11%		3.18%
Institutional Service Class shares		5.81%		3.10%		3.17%
Barclays Municipal Bond Index (The Index does not pay sales charges, fees, expenses or taxes.)		9.05%		5.16%		4.74%

Portfolio Management

Investment Adviser

Nationwide Fund Advisors

Subadviser

Ziegler Capital Management, LLC (“Ziegler”)

Portfolio Managers

Portfolio Manager	Title	Length of Service with Fund (and Predecessor Fund)
Paula M. Horn	Chief Investment Officer, Ziegler	Since 2009
Richard D. Scargill	Vice President and Portfolio Manager, Ziegler	Since 2009
Eric Zenner	Vice President and Portfolio Manager, Ziegler	Since 2009

Purchase and Sale of Fund Shares

Minimum Initial Investment

Classes A, C: $2,000

Institutional Service Class: $50,000

Institutional Class: $1,000,000

Automatic Asset Accumulation Plan (Classes A, C): $0*

* Provided each monthly purchase is at least $50

Minimum Additional Investment

Classes A, C: $100

Institutional Service Class, Institutional Class: no minimum

Automatic Asset Accumulation Plan (Classes A, C): $50

In general, you can buy or sell (redeem) shares of the Fund by mail or phone on any business day. You can generally pay for shares by check or wire.

To Purchase and Sell (Redeem) Fund Shares
Mail: Nationwide Funds P.O. Box 701 Milwaukee, WI 53201-0701	Overnight: Nationwide Funds 615 East Michigan Street Third Floor Milwaukee, WI 53202	Website: nationwide.com/mutualfunds
Phone: 800-848-0920 (toll free). Representatives are available 9 a.m. – 8 p.m. Eastern time, Monday through Friday.

Tax Information

The Fund’s distributions primarily are exempt from regular federal income tax and state income tax for residents of Wisconsin. A portion of these distributions, however, may be subject to the federal alternative minimum tax. The Fund may also make distributions that are taxable to you as ordinary income or capital gains.

Payments to Broker-Dealers and Other Financial Intermediaries

If you purchase the Fund through a broker-dealer or other financial intermediary (such as a bank), the Fund and its related companies may pay the intermediary for the sale of Fund shares and related services. These payments may create a conflict of interest by influencing the broker-dealer or other intermediary and your salesperson to recommend the Fund over another investment. Ask your salesperson or visit your financial intermediary’s website for more information.

Summary Prospectus March 1, 2015 4 Nationwide Ziegler Wisconsin Tax Exempt Fund