The name USS Valiant has been assigned to six Starfleet starships:
- The Ranger-class vessel USS Valiant (NCC-1223) in service in the early 23rd century. (Last Unicorn RPG: Ship Recognition Manual, Volume 4)
- The Constitution-class vessel USS Valiant (NCC-1709) in service in the mid 23rd century. (Star Fleet Technical Manual)
- The USS Valiant (NCC-2252) in service in the late 23rd century. (TOS novel: Rules of Engagement).
- The Oberth-class vessel USS Valiant (NCC-20000) in service at the early-to-late 24th century. (TNG novelization: Star Trek: Generations).
- The Defiant-class vessel USS Valiant (NCC-74210) in service in the early 2370s. (DS9 episode: "Valiant")
- The Defiant-class vessel USS Valiant (NCC-75418) in service in the late 24th century. (Star Trek Nemesis)