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 22, 2013

Wyndham Worldwide Corporation

(Exact Name of Registrant as Specified in Its Charter)

Registrant’s Telephone Number, Including Area Code: (973) 753-6000

None

(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 (see General Instruction A.2. below):

On February 22, 2013, Wyndham Worldwide Corporation (“Wyndham Worldwide”) issued $450 million aggregate principal amount of 2.500% notes due 2018 (the “2018 Notes”) and $400 million aggregate principal amount of 3.900% notes due 2023 (the “2023 Notes” and, together with the 2018 Notes, the “Notes”) pursuant to its effective shelf registration statement on Form S-3 (File No. 333-179710), as filed with the Securities and Exchange Commission (the “SEC”) on February 27, 2012 (the “Registration Statement”). The terms of the Notes are governed by an indenture, dated November 20, 2008 between Wyndham Worldwide and U.S. Bank National Association, as trustee (the “Base Indenture”), as supplemented and amended by the eighth supplemental indenture thereto, dated February 22, 2013 (the “Eighth Supplemental Indenture,” together with the Base Indenture, the “Indenture”).

The 2018 Notes bear interest at a rate of 2.500% per year payable semi-annually in arrears on March 1 and September 1 of each year, commencing September 1, 2013. The 2023 Notes bear interest at a rate of 3.900% per year payable semi-annually in arrears on March 1 and September 1 of each year, commencing September 1, 2013.

The 2018 Notes are redeemable at any time prior to February 1, 2018 (one month prior to the maturity date of the 2018 Notes) and the 2023 Notes are redeemable at any time prior to December 1, 2022 (three months prior to the maturity date of the 2023 Notes) at a redemption price equal to the greater of (i) the sum of the principal being redeemed, plus accrued and unpaid interest, and (ii) a “make-whole” price specified in the Notes, plus accrued and unpaid interest.

The 2018 Notes are redeemable at any time on or after February 1, 2018 (one month prior to the maturity date of the 2018 Notes) at a redemption price equal to 100% of the principal amount of the 2018 notes being redeemed and the 2023 Notes on or after December 1, 2022 (three months prior to the maturity date of the 2023 Notes) at a redemption price equal to 100% of the principal amount of the 2023 notes being redeemed, plus, in each case, accrued and unpaid interest on the principal amount being redeemed to, but not including, the redemption date.

If Wyndham Worldwide experiences a Change of Control Triggering Event (as defined in the Indenture), Wyndham Worldwide is required to offer to repurchase the Notes at 101% of their principal amount plus accrued and unpaid interest, if any, to the date of purchase.

The Indenture contains customary provisions for events of default including for failure to pay principal or interest when due and payable, failure to comply with covenants or agreements in the Indenture or the Notes and failure to cure or obtain a waiver of such default upon notice, a default under other debt of Wyndham Worldwide or certain of its subsidiaries such that at least $50 million aggregate principal amount of indebtedness is accelerated which acceleration has not been rescinded or annulled within 30 days of notice, and events of bankruptcy, insolvency or reorganization affecting Wyndham Worldwide and certain of its subsidiaries. In the case of an event of default, the principal amount of the Notes plus accrued and unpaid interest may be accelerated. The Indenture also contains covenants limiting the ability of Wyndham Worldwide and certain subsidiaries to incur debt secured by liens and to enter into sale and lease back transactions.

The information provided in Item 1.01 with respect to Wyndham Worldwide’s issuance of the Notes is incorporated by reference herein.

On February 19, 2013, Wyndham Worldwide entered into an underwriting agreement (the “Underwriting Agreement”) with J.P. Morgan Securities LLC, Deutsche Bank Securities Inc. and Merrill Lynch, Pierce, Fenner & Smith Incorporated, as representatives of the several underwriters named therein, with respect to the issuance and sale of the Notes.

The description of the Underwriting Agreement, the Notes and the Indenture in this report are summaries and are qualified in their entirety by reference to the Underwriting Agreement, the Indenture and the form of the Notes included therein. The Base Indenture was filed with the SEC as Exhibit 4.2 to the shelf registration statement on Form S-3 (File No. 333-155676), as filed with the SEC on November 25, 2008. The Underwriting Agreement, the Eighth Supplemental Indenture and the form of Notes are filed as exhibits hereto and are incorporated by reference herein.

(d) Exhibits

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.

WYNDHAM WORLDWIDE CORPORATION

CURRENT REPORT ON FORM 8-K

Report Dated February 22, 2013

EXHIBIT INDEX