USS Excalibur
At least four Federation starships have been named USS Excalibur after the mythical sword of King Arthur:
- USS Excalibur (NCC-1664), a 23rd century ship
- USS Excalibur (NCC-1664-M), a 32nd century ship
- USS Excalibur (NCC-21534), a 24th century ship
- USS Excalibur (NCC-26517), a 24th century ship