EXHIBIT 8.1

SUBSIDIARIES OF GASLOG LTD.

The following companies are subsidiaries of GasLog Ltd. as of March 25, 2015:

|                                          |  |                              |  |                               
|----------------------------------------- |  | ---------------------------- |  | ------------------------------
|Name of Subsidiary                        |  | Jurisdiction ofIncorporation |  | Proportion ofOwnershipInterest
|Gaslog Investments Ltd.                   |  | BVI                          |  |                               
|GasLog Monaco S.A.M.                      |  | Monaco                       |  |                               
|GasLog LNG Services Ltd.                  |  | Bermuda                      |  |                               
|GasLog LNG Employee Incentive Scheme Ltd. |  | Bermuda                      |  |                               
|GasLog Carriers Ltd.                      |  | Bermuda                      |  |                               
|GasLog Shipping Company Ltd.              |  | Bermuda                      |  |                               
|GasLog Shipping Ltd.                      |  | BVI                          |  |                               
|GasLog Services US Inc.                   |  | Delaware, U.S.               |  |                               
|GasLog Services UK Ltd.                   |  | England and Wales            |  |                               
|GAS-one Ltd.                              |  | Bermuda                      |  |                               
|GAS-two Ltd.                              |  | Bermuda                      |  |                               
|GAS-six Ltd.                              |  | Bermuda                      |  |                               
|GAS-seven Ltd.                            |  | Bermuda                      |  |                               
|GAS-eight Ltd.                            |  | Bermuda                      |  |                               
|GAS-nine Ltd.                             |  | Bermuda                      |  |                               
|GAS-ten Ltd.                              |  | Bermuda                      |  |                               
|GAS-eleven Ltd.                           |  | Bermuda                      |  |                               
|GAS-twelve Ltd.                           |  | Bermuda                      |  |                               
|GAS-thirteen Ltd.                         |  | Bermuda                      |  |                               
|GAS-fourteen Ltd.                         |  | Bermuda                      |  |                               
|GAS-fifteen Ltd.                          |  | Bermuda                      |  |                               
|GAS-eighteen Ltd.                         |  | Bermuda                      |  |                               
|GAS-nineteen Ltd.                         |  | Bermuda                      |  |                               
|GAS-twenty Ltd.                           |  | Bermuda                      |  |                               
|GAS-twenty one Ltd.                       |  | Bermuda                      |  |                               
|GAS-twenty two Ltd.                       |  | Bermuda                      |  |                               
|GAS-twenty three Ltd.                     |  | Bermuda                      |  |                               
|GAS-twenty four Ltd.                      |  | Bermuda                      |  |                               
|GAS-twenty five Ltd.                      |  | Bermuda                      |  |                               
|GAS-twenty six Ltd.(1)                    |  | Bermuda                      |  |                               
|GAS-twenty seven Ltd.(1)                  |  | Bermuda                      |  |                               
|GasLog Partners GP LLC                    |  | Marshall Islands             |  |                               
|GasLog Partners LP                        |  | Marshall Islands             |  |                               
|GasLog Partners Holdings LLC              |  | Marshall Islands             |  |                               
|GAS-three Ltd.                            |  | Bermuda                      |  |                               
|GAS-four Ltd.                             |  | Bermuda                      |  |                               
|GAS-five Ltd.                             |  | Bermuda                      |  |                               
|GAS-sixteen Ltd.                          |  | Bermuda                      |  |                               
|GAS-seventeen Ltd.                        |  | Bermuda                      |  |                               



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