|Region||Galactic Federation Space (Presumed)|
Tivus is a location - presumably a planet - which appears to exist within Galactic Federation space. It was the last location that the GFS Valhalla had traveled to before it suffered a fatal attack by Space Pirates.
It was revealed during the Federation assault on the planet Phaaze that a battle formation is named after Tivus, and was employed by fighters during this battle.
- Metroid Prime 3: Corruption (First mentioned)