Task Force Three was the name of at least three distinct task forces:
- An Earth Starfleet force during the Earth-Romulan War of the mid-22nd century;
- A Federation Starfleet task force during the Kelvan War of the 2280s
- A Federation Starfleet task force extant in the late 24th century.
Almost all of the vessels assigned to Task Force Three during the Kelvan War in 2285 — including the USS K'ushui and the USS Mondoloy — were destroyed. (Orion Press: In Harm's Way)
Task Force Three was one of three task forces assigned to the Starfleet First Fleet in the late 24th century. The task force flagship was the Anubis-class USS Mercury (NCC-82450). (Starfleet Command (RPG))