Several ships in the United States Navy have been named USS Monocacy for the Battle of Monocacy:
- USS Monocacy (1864), a gunboat launched in 1864, and served until 1903
- USS Monocacy (PG-20), commissioned in 1914 and decommissioned in 1939
- USS Genesee (AT-55), originally the civilian tug Monocacy (1905)
This article includes a list of ships with the same or similar names. If an internal link for a specific ship led you here, you may wish to change the link to point directly to the intended ship article, if one exists.