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): September 19, 2017

NCL CORPORATION LTD.

(Exact name of Registrant as specified in its charter)

Bermuda

(State of Incorporation)

333-128780

(Commission File Number)

20-0470163

(I.R.S. Employer Identification No.)

(305) 436-4000

(Registrant’s telephone number, including area code)

(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:

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2). Emerging growth company ¨

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

On September 19, 2017, NCL Corporation Ltd. (the “Company”) launched an amendment for its existing credit facilities under that certain Second Amended and Restated Credit Agreement, dated as of June 6, 2016, by and among the Company, the subsidiaries of the Company party thereto, the lenders party thereto, and JPMorgan Chase Bank, N.A. (“JP Morgan”), as the administrative agent. The amendment will, among other things, (x) reprice the existing $750 million revolving credit facility and the existing $1,431 million term A loan facility thereunder, (y) increase the size of the existing revolving facility and (z) add a new $375 million term B loan facility due 2021. The Company intends to use the proceeds of the new term B loan, together with borrowings under the revolving credit facility and cash on hand, to redeem its 4.625% Senior Notes due 2020. JP Morgan is acting as lead arranger for the amendment.

The information in this Item 7.01 is being furnished and shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that Section. The information in this Item 7.01 shall not be incorporated by reference into any registration statement or other document pursuant to the Securities Act of 1933, as amended.

SIGNATURES

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