List of ship commissionings in 1915
The list of ship commissionings in 1915 is a chronological list of ships commissioned in 1915. In cases where no official commissioning ceremony was held, the date of service entry may be used instead.
| Date | Operator | Ship | Pennant | Class and type | Notes |
| 3 January | ' | ||||
| 19 January | ' | ||||
| 8 March | ' | 03 | |||
| 17 April | A-3 | Submarine Torpedo Boat No. 4 | recommissioned at Olongapo, Philippines | ||
| 15 May | ' | ||||
| 8 June | A-5 | Submarine Torpedo Boat No. 6 | recommissioned at Olongapo, Philippines | ||
| 12 June | ' | ||||
| 12 June | ' | N 2 | |||
| 24 June | ' | ||||
| 2 July | ' | FS2 | Converted merchant type seaplane carrier | Former | |
| 17 July | ' | FS1 | Converted merchant type seaplane carrier | Former | |
| 30 July | ' | Großes Torpedoboot 1913 class | |||
| 8 August | ' | ||||
| 20 August | ' | Großes Torpedoboot 1913-class torpedo boat | |||
| 20 August | ' | ||||
| 4 September | ' | ||||
| 16 September | ' | Großes Torpedoboot 1913 class | |||
| 30 September | ' | Dreadnought battleship | |||
| 30 September | ' | Großes Torpedoboot 1913 class | |||
| 6 October | ' | Seaplane carrier | Former | ||
| 14 October | ' | Großes Torpedoboot 1913 class | |||
| 19 October | ' | 04 | |||
| 10 November | ' | Großes Torpedoboot 1913 class | |||
| 13 December | ' | ||||
| 20 December |