The list of ship decommissionings in 1955 includes a chronological list of all ships decommissioned in 1955.
| Operator | Ship | Class and type | Fate | Other notes | ||
|---|---|---|---|---|---|---|
| 15 January | Reserve | Recommissioned as | ||||
| 21 January | anti-submarine carrier | Reserve | Transferred to Spain in 1967 and renamed Dedalo | |||
| 18 February | Scrapped | Reserve until stricken in 1960 | ||||
| 30 June | Scrapped | Reserve until stricken in 1971 | ||||
| 4 August | Scrapped | Reserve until stricken in 1959 | ||||
| 12 August | Returned to the United Kingdom | |||||
| 15 December | Reserve | Activated by the Military Sea Transportation Service in 1965[1] |