List of ship decommissionings in 1912
The list of ship decommissionings in 1912 includes a chronological list of ships decommissioned in 1912. 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 1912 instead.
| Date | Operator | Ship | Pennant | Class and type | Fate and other notes |
| June 28 | A-5 | placed in reserve at Puget Sound Navy Yard and later shipped to the Philippines | |||
| November 28 | A-3 | Submarine Torpedo Boat No. 4 | to the Pacific Reserve Fleet, later shipped to the Philippines | ||
| – | Coastal defense ship | Ex-armored frigate; wrecked under tow to breakers 1916 |