1. A son of Glaucus and Eurymede, or of Poseidon and Eurynome (Pind. Ol. xiii. 66; Hygin. Fab. 157), and a grandson of Sisyphus. He was a Corinthian hero, and by some called Leophontes, or more commonly Bellerophon, Bellerophontes, or Ellerophontes, a name which he is said to have received from having slain Bellerus, a distinguished Corinthian. [See BELLEROPHON.]

2. A son of Triballus and king of the Triballi tribe of Thrace. He was the father by Thrassa of Polyphonte. (Ant. Lib. 21.)

3. A king of Olenus, father of Periboea. (Apollod. iii. 6. § 3, 12. § 5.)

4. There are several other mythical personages of the name of Hipponous. (Schol. ad Pind. Nem. ix. 90; Hom. Il. xi. 303.)