1. In Greek mythology, Mopsus was the son of Ampyx and Chloris. He helped hunt the Calydonian Boar and was one of the Argonauts (specifically, he was their seer.).
  2. The son of Manto and Rhacius or Apollo. This Mopsus was a famous seer and helped Amphilochus found the Apollonion oracle at Colophon. He also beat Calchas at a soothsaying contest; Calchas died in shame and disappointment.