List of ship decommissionings in 1956
The list of ship decommissionings in 1956 includes a chronological list of all ships decommissioned in 1956. In cases where no official decommissioning ceremony was held, the date of withdrawal from service may be used instead. For ships lost at sea, see list of shipwrecks in 1956 instead.
| Operator | Ship | Class and type | Fate | Other notes | |
| 16 January | ' | anti-submarine carrier | Scrapped | Reserve until stricken in 1970 | |
| 3 June | ' | Scrapped | Reserve until stricken in 1970 | ||
| 31 August | ' | Reserve | Reactivated by the Military Sea Transportation Service in 1965 | ||
| Date uncertain | ' | Scrapped |