A demigod, a "half-god," is a person whose one parent was a god and whose other parent was a human. The heroes of Greek mythology were often demigods. Zeus became the father of many demigods as a result of his dalliances. Demigods were usually mortal, but were pre-eminent among humans, and some had unusual powers. Some demigods from Greek mythology or history include:
- Achilles
- Aeacus
- Aeneas
- Alexander the Great
- Amphion
- Arcas
- Britomartis
- Clymene
- Dardania
- The Dioscuri, Castor and Polydeuces
- Epaphus
- Harmonia
- Helen
- Heracles - also known as Hercules
- Iapetus
- Iasion
- Lacedaemon
- Minos
- Memnon
- Perseus (mythology)
- Rhadamanthus
- Sarpedon
- Theseus
- Tityas
- Zethus