The list of ship decommissionings in 1975 includes a chronological list of all ships decommissioned in 1975.
| Operator | Ship | Class and type | Fate | Other notes | |
|---|---|---|---|---|---|
| 26 August | German Federal Navy | Falke | Decommissioned for sale to Greece as Kataigis | ||
| 28 November | German Federal Navy | Bussard | Decommissioned for sale to Greece for cannibalization | ||
| 1 December | Finland, Finnlines | Finnpartner | ferry | Laid up in Helsinki; chartered to Olau Line in March 1976 | Renamed Olau Finn |
| 19 December | German Federal Navy | Albatros | Decommissioned for sale to Greece for cannibalization |
| Ship events in 1975 | |||||||||||
| Ship launches: | 1970 | 1971 | 1972 | 1973 | 1974 | 1975 | 1976 | 1977 | 1978 | 1979 | 1980 |
| Ship commissionings: | 1970 | 1971 | 1972 | 1973 | 1974 | 1975 | 1976 | 1977 | 1978 | 1979 | 1980 |
| Ship decommissionings: | 1970 | 1971 | 1972 | 1973 | 1974 | 1975 | 1976 | 1977 | 1978 | 1979 | 1980 |
| Shipwrecks: | 1970 | 1971 | 1972 | 1973 | 1974 | 1975 | 1976 | 1977 | 1978 | 1979 | 1980 |