The list of ship decommissionings in 1904 includes a chronological list of ships decommissioned in 1904. In cases where no official decommissioning ceremony was held, the date of withdrawal from service may be used instead.
| Date | Operator | Ship | Pennant | Class and type | Fate and other notes |
|---|---|---|---|---|---|
| August 20 | 
United States
|
Moccasin | Submarine Torpedo Boat No. 5 | Plunger-class submarine | to reserve at Norfolk, Virginia until shipped to the Philippines [1] |
References
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^
"A-4 (Submarine Torpedo Boat No. 5)". Dictionary of American Naval Fighting Ships. Naval History and Heritage Command. 31 August 2016. Retrieved 5 June 2019.
assigned to the Reserve Torpedo Flotilla at Norfolk on 15 June 1904