List of ship decommissionings in 1975
The list of ship decommissionings in 1975 is a chronological list ofships decommissioned in 1975.
| Operator | Ship | Class and type | Fate | Other notes | |
| 26 August | ' | Sold to Greece | Renamed | ||
| 28 November | ' | Sold to Greece | Cannibalized | ||
| 1 December | , Finnlines | Finnpartner | Ferry | Laid up in Helsinki; chartered to Olau Line in March 1976 | Renamed Olau Finn |
| 19 December | ' | Sold to Greece | Cannibalized | ||
| Unknown date | U.S. National Oceanic and Atmospheric Administration | ' | Cargo liner | Sold 1975 | Extant 2013 |