The list of ship decommissionings in 1951 includes a chronological list of ships decommissioned in 1951. 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 1951 instead.
| Date | Operator | Ship | Class and type | Fate and other notes |
|---|---|---|---|---|
| 5 October |  United States Navy | USS Moore (DE‑147) | Edsall-class destroyer escort | Placed in reserve until recommission |
| 7 November [1] | United States Navy | USS KST-973 | LST‑542-class tank landing ship | Transferred immediately to the French Navy; struck from U.S. register 20 November 1951. |
| 29 October [2] | United States Navy | USS Glendale (PF-36) | Tacoma-class patrol frigate | Transferred to the Royal Thai Navy |