Polybus (Πόλυβος) is an ancient Greek male name. It is the name of:
Historical figures:
- Polybus (physician) (fl. c. 400 BCE), author of On the Nature of Man
Mythical figures:
- Polybus (mythology) for mythological characters named Polybus
- Polybus of Corinth, best known for having reared Oedipus
- Polybus of Sicyon, a son of Hermes and king of Sicyon
- Polybus of Thebes, king of the Egyptian Thebes
- Polybus (Odyssey), father of Eurymachus
- Polybus (Trojan War), a son of Antenor