In Greek mythology, Erginus (; Ancient Greek: Ἐργῖνος, romanized: Ergînos) was an Argonaut who piloted the Argo after the helmsman Tiphys died.
Family
Erginus is said to be the son of Poseidon, and to have resided in the Carian city of Miletus. Yet others suggested he was a son of Periclymenus. Some authors identify him with another Erginus, king of Minyan Orchomenus.