- For other starships of the same name, see USS Merrimack.
The USS Merrimack was a Starfleet starship active in 2381. During the invasion of the Borg Collective that year, it was part of a task force to defend Starbase 24 along with the USS Sparta and USS Ulysses. A previously undetected Borg cube slipped through perimeter defenses and attacked the task force, destroying all three vessels and the starbase.
- It is possible, although not established, that this is the same vessel as the USS Merrimac