Louis Davion (b. ???? - d. ????) was the fourth son of First Prince Alexander Davion of the Federated Suns and the second child born to Alexander's second wife, Veronique DuVall. Louis founded the branch of the Davion family associated with the planet Ridgebrook, although that branch of the family subsequently died out during the Succession Wars.
- Historical: Reunification War, p. 51, "Alexander Davion"
- Handbook: House Davion, p. 110, "The Davion Lines"