List of ship commissionings in 1973
The list of ship commissionings in 1973 includes a chronological list of all ships commissioned in 1973.
| Operator | Ship | Class and type | Pennant | Other notes | |
| 13 February | ' | Frigate | |||
| 13 March | , Finnlines | ' | Ferry | Formerly Stena Atlantica with Stena Line | |
| 31 March | ' | Frigate | |||
| 17 June | , Rederi Ab Sally | ' | Ferry | For Viking Line traffic | |
| 30 June | , SF Line | ' | Ferry | For Viking Line traffic | |
| 15 September | ' | Project 1134A Berkut A large anti-submarine ship | |||
| 17 November | ' | Frigate | |||
| 28 December | ' | Project 1134A Berkut A large anti-submarine ship |