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):

February 28, 2013

DiamondRock Hospitality Company

(Exact name of registrant as specified in charter)

3 Bethesda Metro Center, Suite 1500

Bethesda, MD 20814

(Address of Principal Executive Offices) (Zip Code)

(240) 744-1150

(Registrant’s telephone number, including area code)

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 (see General Instruction A.2. below):

ITEM 2.02. Results of Operations and Financial Condition.

On February 28, 2013, DiamondRock Hospitality Company (the “Company”) issued a press release announcing its financial results for the fiscal quarter and year ended December 31, 2012 (the “Press Release”). The text of the Press Release is attached hereto as Exhibit 99.1 and is incorporated by reference herein.

The information contained in the press release attached as Exhibit 99.1 to this report shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934 or otherwise subject to the liabilities of that section. Furthermore, the information contained in the press release attached as Exhibit 99.1 to this report shall not be deemed to be incorporated by reference in the filings of the registrant under the Securities Act of 1933.

ITEM 5.02. Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

On February 28, 2013, the Board of Directors (the “Board”) of the Company approved the appointment of Robert Tanenbaum as Chief Operating Officer and Executive Vice President, Asset Management of the Company, such appointment to be effective May 1, 2013 upon the retirement of John L. Williams. In this role, Mr. Tanenbaum will join the Company’s executive management team and oversee the Company’s Asset Management Department. Mr. Tanenbaum is expected to formally join the Company as an employee on April 1, 2013, and may provide consulting and other services to the Company prior to that date.

Mr. Tanenbaum brings over 20 years of experience in the hotel industry to the Company. Most recently he was the Principal of Madison Hotel Advisors, LLC, which he founded in 2004. Prior to founding Madison Hotel Advisors, LLC, he was a Vice President of Asset Management with Host Hotels & Resorts from 1996 to 2004. His experience prior to that includes PKF Consulting in San Francisco, CA and Four Seasons Hotels in Chicago, IL and Maui, HI. Mr. Tanenbaum is an active member of the Hospitality Asset Managers Association and is a graduate of the Pennsylvania State University with a Bachelor of Science degree in Hotel Restaurant and Institutional Management.

In connection with Mr. Tanenbaum’s appointment, the Board approved the terms of an offer letter between the Company and Mr. Tanenbaum, which outlines his salary and benefits for 2013. The material terms of the offer letter, as supplemented, are as follows:

It is also expected that Mr. Tanenbaum and the Company will enter into a severance agreement, substantially in the form entered into by other executive officers, except that Mr. Tanenbaum’s severance agreement will not include a tax gross-up provision.

Mr. Tanenbaum does not have any familial relationship requiring disclosure under Item 401(d) of Regulation S-K. Mr. Tanenbaum does not have any related party interests requiring disclosure under Item 404(a) of Regulation S-K. Mr. Tanenbaum is not a director of the Company or any other registered company.

The above descriptions of the offer letter and the form of severance agreement are not complete and are qualified entirely by reference to the text of those agreements, which are filed as an exhibit (with the form of severance agreement filed as Exhibit B to the offer letter) to this Current Report on Form 8-K and are incorporated herein by reference.

ITEM 9.01. Financial Statements and Exhibits.

The following exhibits are included with this report:

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.