Betelgeusian
- Appearance: Avian; blue skin, beak-like facial structure (Star Trek: The Motion Picture)
- Homeworld: Unnamed planet near Betelgeuse
- Departed homeworld upon discovery of Betelgeuse's coming supernova in the near future, residing instead on interstellar argosies (TOS Novel: The Face of the Unknown; TNG Novel: The Buried Age)
- Cultural notes
- Language
- Tonal language (TNG Short Story: "Friends with the Sparrows")
- Language