UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 6-K

Report of Foreign Private Issuer

Pursuant to Rule 13a-16 or 15d-16 of

the Securities Exchange Act of 1934

Date of report: March 20, 2018

Commission file number 1-12874

TEEKAY CORPORATION

(Exact name of Registrant as specified in its charter)

4th Floor

Belvedere Building

69 Pitts Bay Road

Hamilton, HM08 Bermuda

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F.

Form 20-F  ☑      Form 40-F  ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1).

Yes  ☐      No  ☑

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7).

Yes  ☐      No  ☑

Item 1- Information Contained in this Report on Form 6-K

Effective March 12, 2018, Eileen A. Mercier retired from her position as Chair of the Audit Committee and member of the Board of Directors of Teekay Corporation (the “Company”), after serving 17 years on the Board.

Effective March 12, 2018, Alan Semple was appointed as the new Chair of the Audit Committee. Mr. Semple has served on the Board and its Audit Committee since 2015.

Attached as Exhibit 99.1 is a copy of a related announcement of the Company dated March 14, 2018.

SIGNATURES

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, thereunto duly authorized.

Exhibit 99.1

TEEKAY CORPORATION ANNOUNCES CHANGE

TO BOARD OF DIRECTORS

HAMILTON, Bermuda, March 14, 2018 (GLOBE NEWSWIRE) — Teekay Corporation (Teekay or the Company) (NYSE:TK) announced today the following changes to its Board of Directors:

Mr. Semple joined the Teekay Board, and its Audit Committee, in 2015. He has over 30 years of finance and energy industry experience, including as Director and Chief Financial Officer at John Wood Group PLC until his retirement in May 2015. Mr. Semple currently also serves on the Board of Cobham PLC, where he is the Chair of its Audit Committee.

“I have found Alan to be an engaging and insightful Board member,” commented Mr. Bill Utt, Teekay’s Chairman of the Board. “His considerable finance and energy industry experience makes him an excellent choice to chair Teekay’s Audit Committee.”

“We owe a huge debt of gratitude to Eileen,” continued Mr. Utt. “She is a highly experienced and strategic thinker. On behalf of the entire Teekay Board, I want to recognize Eileen for her exemplary service as a Teekay Board member over the past 17 years, and thank her for the significant contributions that she has made to Teekay during her tenure.”

About Teekay

Teekay Corporation operates in the marine midstream space through its ownership of the general partner and a portion of the outstanding limited partner interests in Teekay LNG Partners L.P. (NYSE:TGP) and an interest in the general partner and a portion of the outstanding limited partner interests in Teekay Offshore Partners L.P. (NYSE:TOO). The general partners own all of the outstanding incentive distribution rights of these entities. In addition, Teekay has a controlling ownership interest in Teekay Tankers Ltd. (NYSE:TNK) and directly owns a fleet of vessels. The combined Teekay entities operate total assets under management of approximately $13 billion, comprised of approximately 215 liquefied gas, offshore, and conventional tanker assets. With offices in 14 countries and approximately 8,200 seagoing and shore-based employees, Teekay provides a comprehensive set of marine services to the world’s leading oil and gas companies.

Teekay’s common stock is listed on the New York Stock Exchange where it trades under the symbol “TK”.

For Investor Relations

enquiries contact:

Exhibit 99.1

Ryan Hamilton

Tel: +1 (604) 609-2963

Website: www.teekay.com