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

September 19, 2014 (September 19, 2014)

Date of Report (Date of earliest event reported)

Caesars Entertainment

Operating Company, Inc.

(Exact name of registrant as specified in its charter)

One Caesars Palace Drive

Las Vegas, Nevada 89109

(Address of principal executive offices) (Zip Code)

(702) 407-6000

(Registrant’s telephone number, including area code)

N/A

(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 September 19, 2014, Caesars Entertainment Operating Company, Inc. (“CEOC”) and Caesars Entertainment Corporation (“CEC”) executed an Amended and Restated Waiver Agreement (the “Agreement”) dated and effective as of August 12, 2014 (the “Effective Date”) for the benefit of UMB Bank, National Association, as the trustee (the “Trustee”) under the indentures (the “Indentures”) governing the Senior Secured Notes (as defined below), and the registered and beneficial holders (the “Holders”) from time to time of CEOC’s 11.25% senior secured notes due 2017, 8.5% senior secured notes due 2020 and 9% senior secured notes due 2020 (the “Senior Secured Notes”). Pursuant to the Agreement, if the Trustee or Holders provide a notice of default in respect of Specified Defaults (as defined in the Agreement) under any or all of the Indentures at any time on or after the Effective Date, such notice of default will be deemed to have been given as of the Effective Date of the Agreement for any and all purposes; provided that (i) if provided on or after September 19, 2014 and before September 26, 2014, each Specified Default alleged in such notice of default under Section 6.01(c) or (j) of any or all of the Indentures shall become an “Event of Default” if CEOC does not cure such Specified Default within ten calendar days or (ii) if provided on or after September 26, 2014, each Specified Default alleged in such notice of default under Section 6.01(c) or (j) of any or all of the Indentures shall become an “Event of Default” if CEOC does not cure such Specified Default within three calendar days. Subject to written extension by CEOC and CEC, any notice of default that is provided more than 120 days after the Effective Date of the Agreement shall not have the benefit of the Agreement. Notwithstanding the Agreement, CEOC reserved all rights to challenge whether or not any Specified Defaults constitute actual defaults under the applicable Indentures.

(d) Exhibits. The following exhibit is being filed herewith:

SIGNATURES

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

EXHIBIT INDEX