EXHIBIT 8.1



SUBSIDIARIES OF GASLOG LTD.



The following companies are subsidiaries
of GasLog Ltd.



|Name of Subsidiary            |  | Jurisdiction of Incorporation |  | Proportion 
of Ownership 
Interest
|----------------------------- |  | ----------------------------- |  | ----------------------------------
|Gaslog Investments Ltd.       |  | BVI                           |  | 100%                              
|GasLog Monaco S.A.M.          |  | Monaco                        |  | 100%                              
|GasLog LNG Services Ltd.      |  | Bermuda                       |  | 100%                              
|GasLog Carriers Ltd.          |  | Bermuda                       |  | 100%                              
|GasLog Shipping Company Ltd.  |  | Bermuda                       |  | 100%                              
|GasLog Shipping Limited.      |  | BVI                           |  | 100%                              
|GasLog Services US Inc.       |  | Delaware, U.S.                |  | 100%                              
|GasLog Services UK Ltd.       |  | England and Wales             |  | 100%                              
|GasLog Asia Pte. Ltd.         |  | Singapore                     |  | 100%                              
|GasLog Cyprus Investments Ltd |  | Cyprus                        |  | 100%                              
|GAS-one Ltd.                  |  | Bermuda                       |  | 100%                              
|GAS-two Ltd.                  |  | Bermuda                       |  | 100%                              
|GAS-six Ltd.                  |  | Bermuda                       |  | 100%                              
|GAS-eight Ltd.                |  | Bermuda                       |  | 100%                              
|GAS-nine Ltd.                 |  | Bermuda                       |  | 100%                              
|GAS-ten Ltd.                  |  | Bermuda                       |  | 100%                              
|GAS-eleven Ltd.               |  | Bermuda                       |  | 100%                              
|GAS-twelve Ltd.               |  | Bermuda                       |  | 100%                              
|GAS-thirteen Ltd.             |  | Bermuda                       |  | 100%                              
|GAS-fourteen Ltd.             |  | Bermuda                       |  | 100%                              
|GAS-fifteen Ltd.              |  | Bermuda                       |  | 100%                              
|GAS-eighteen Ltd.             |  | Bermuda                       |  | 100%                              
|GAS-twenty two Ltd.           |  | Bermuda                       |  | 100%                              
|GAS-twenty three Ltd.         |  | Bermuda                       |  | 100%                              
|GAS-twenty four Ltd.          |  | Bermuda                       |  | 100%                              
|GAS-twenty five Ltd.          |  | Bermuda                       |  | 100%                              
|GAS-twenty six Ltd.           |  | Bermuda                       |  | 100%                              
|GAS-twenty seven Ltd.         |  | Bermuda                       |  | 100%                              
|GAS-twenty eight Ltd.         |  | Bermuda                       |  | 100%                              
|GAS-twenty nine Ltd.          |  | Bermuda                       |  | 100%                              
|GasLog Partners GP LLC        |  | Marshall Islands              |  | 100%                              
|GasLog Partners LP            |  | Marshall Islands              |  | 27.57%                            
|GasLog Partners Holdings LLC  |  | Marshall Islands              |  | 27.57%                            
|GAS-three Ltd.                |  | Bermuda                       |  | 27.57%                            
|GAS-four Ltd.                 |  | Bermuda                       |  | 27.57%                            
|GAS-five Ltd.                 |  | Bermuda                       |  | 27.57%                            
|GAS-seven Ltd                 |  | Bermuda                       |  | 27.57%                            
|GAS-sixteen Ltd.              |  | Bermuda                       |  | 27.57%                            
|GAS-seventeen Ltd.            |  | Bermuda                       |  | 27.57%                            
|GAS-nineteen Ltd.             |  | Bermuda                       |  | 27.57%                            
|GAS-twenty Ltd.               |  | Bermuda                       |  | 27.57%                            
|GAS-twenty one Ltd.           |  | Bermuda                       |  | 27.57%