In Greek mythology, Amythaon (; Ancient Greek: Ἀμυθάων, gen.: Ἀμυθάονος) was prince of Iolcus as the son of King Cretheus and Tyro, daughter of King Salmoneus of Elis. He was the brother of Aeson and Pheres. Amythaon dwelt at Pylos in Messenia, and by Idomene (daughter of Pheres), his niece, or by Aglaia became the father of Bias, Melampus,...