Report of Foreign Issuer (6-k)

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 UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of March, 2017.

Commission File Number 001-35466

GasLog Ltd.

(Translation of registrant’s name into English)

c/o GasLog Monaco S.A.M.

Gildo Pastor Center

7 Rue du Gabian

MC 98000, Monaco

(Address of principal executive office)

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

Form 20-F þ Form 40-F o

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): o

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): o

The press release issued by GasLog Ltd. on March 1, 2017 announcing the availability of its Annual Report on Form 20-F is included as Exhibit 99.1 and is incorporated herein by reference.

EXHIBIT LIST

Exhibit	Description

99.1	Press Release dated March 1, 2017

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.