The list of ship decommissionings in 1942 includes a chronological list of all ships decommissioned in 1942. 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 1942 instead.
| Operator | Ship | Class and type | Fate | Other notes | |
|---|---|---|---|---|---|
| 20 February | USS Suwannee | Cimarron-class oiler | Conversion to escort aircraft carrier | Recommissioned in September 1942 [1] | |
| 25 February | USS Sangamon | Cimarron-class oiler | Conversion to escort aircraft carrier | Recommissioned in August 1942 [2] | |
| 16 March | USS Chenango | Cimarron-class oiler | Conversion to escort aircraft carrier | Recommissioned in September 1942 [3] | |
| Spring | USS Santee | Cimarron-class oiler | Conversion to escort aircraft carrier | Recommissioned in August 1942 [4] |