Vior'la is a planet and Sept of the T'au Empire, which was first conquered by the T'au during the First Sphere Expansion. Vior'la is well known among the T'au and their allies for the Fire Warriors drawn from the members of its population's Fire Caste, because they are more aggressive than any other in the T'au military. Vior'la was also the home of O'Shovah, known to the Imperium as Commander Farsight, before he abandoned the Empire to found the Farsight Enclaves, T'au colonies that exist outside the authority of the T'au Empire and its ruling caste of Ethereals.
- Codex: Tau Empire (6th Edition), pg. 11
- Codex: Tau Empire (4th Edition)
- Codex: Tau (3rd Edition)