The list of ship commissionings in 1975 includes a chronological list of all ships commissioned in 1975.
| Operator | Ship | Flag | Class and type | Pennant | Other notes | |
|---|---|---|---|---|---|---|
| 3 May |  United States Navy
|
Nimitz | Nimitz-class aircraft carrier | CVN-68 | First in class | |
| 15 May | Rederi AB Svea | Svea Corona |  Sweden
|
Ferry | For Silja Line traffic | |
| 9 July | Finland Steamship Company | Wellamo |  Finland
|
Ferry | For Silja Line traffic | |
| 30 September |  Soviet Navy
|
Druzhny | Project 1135 large anti-submarine ship | 200 | ||
| 3 October |  Royal Netherlands Navy
|
Tromp | Tromp-class frigate | F801 | First in class | |
| 25 November | Soviet Navy
|
Marshal Timoshenko | Project 1134A Berkut A large anti-submarine ship | 251 | ||
| 11 December | Finnlines | Bore Star | Finland
|
Ferry (used as a cruise ship) | Chartered from Steamship Company Bore; marketed under the name Finnpartner | |
| 28 December | Soviet Navy
|
Kiev | Kiev-class aircraft carrier | First in class |
|
Ship events in 1975
| |
|---|---|
| Ship launches |
|
| Ship commissionings |
|
| Ship decommissionings |
|
| Shipwrecks |
|
