UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): October 10, 2014

Dollar General Corporation

(Exact name of registrant as specified in its charter)

Registrant’s telephone number, including area code: (615) 855-4000

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

On October 10, 2014, Dollar General Corporation (“Dollar General”) issued the press release furnished herewith as Exhibit 99 and incorporated herein by reference. The information in Exhibit 99 shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and shall not be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended.

Important Additional Information

This Current Report is provided for informational purposes only and is neither an offer to purchase nor a solicitation of an offer to sell any shares of the common stock of Family Dollar Stores, Inc. (“Family Dollar”) or any other securities. Dollar General and its wholly owned subsidiary D3 Merger Sub, Inc. have commenced a tender offer for all outstanding shares of common stock of Family Dollar and have filed with the Securities and Exchange Commission (the “SEC”) a tender offer statement on Schedule TO (including an Offer to Purchase, a Letter of Transmittal and related documents), as amended and as may be further amended. These documents contain important information, including the terms and conditions of the tender offer, and shareholders of Family Dollar are advised to carefully read these documents before making any decision with respect to the tender offer. Investors and security holders may obtain free copies of these statements and other documents filed with respect to the tender offer at the SEC’s website at www.sec.gov. In addition, copies of the tender offer statement and related materials may be obtained for free by directing such requests to the information agent for the tender offer, Innisfree M&A Incorporated, at (877) 750-5837 (toll free for shareholders) or (212) 750-5833 (collect for banks and brokers).

Dollar General has filed a preliminary proxy statement and relevant documents in connection with the special meeting of the stockholders of Family Dollar at which the Family Dollar stockholders will consider certain proposals regarding the potential acquisition of Family Dollar by Dollar Tree, Inc. (the “Special Meeting Proposals”). Dollar General and its directors and executive officers and other members of its management and employees may be deemed to be participants in the solicitation of proxies from Family Dollar’s stockholders in connection with the Special Meeting Proposals. STOCKHOLDERS OF FAMILY DOLLAR ARE URGED TO READ THE PROXY STATEMENT AND ANY OTHER RELEVANT DOCUMENTS FILED WITH THE SEC WHEN THEY BECOME AVAILABLE BECAUSE THEY WILL CONTAIN IMPORTANT INFORMATION. Investors and security holders may obtain a free copy of the proxy statement (when available) and other documents filed by Dollar General at the SEC’s web site at http://www.sec.gov or by contacting the information agent for the proxy solicitation, Innisfree M&A Incorporated, at (877) 750-5837 (toll free for shareholders) or (212) 750-5833 (collect for banks and brokers).

The information set forth in Item 7.01 is incorporated herein by reference.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

EXHIBIT INDEX