Bellerophon (; ) or Bellerophontes is a hero of Greek mythology. He was "the greatest hero and slayer of monsters, alongside Cadmus and Perseus, before the days of Heracles", and his greatest feat was killing the Chimera, a monster that Homer depicted with a lion's head, a goat's body, and a serpent's tail: "her breath came out in terrible blasts of burning flame." Bellerophon was born at Corinth and was the son of the mortal Eurynome by either her husband Glaucus, or Poseidon.

Bellérophon is an opera with music by Jean-Baptiste Lully and a libretto by Thomas Corneille and Bernard le Bovier de Fontenelle first performed by the Opéra at the Théâtre du Palais-Royal in Paris on 31 January 1679.