Wikipedia
UFN
UFN is an acronym for:
- UFC Ultimate Fight Night, a mixed martial arts event held by Ultimate Fight Championship company
- Uspekhi Fizicheskikh Nauk, Russian academical publication of Physics
- Ucluelet First Nation, the treaty government of the Yuułuʔiłʔatḥ in the Canadian province of British Columbia
- "United Federation of Nations", an episode of Code Geass: Lelouch of the Rebellion R2