In Greek mythology, Actaeon (/ækˈtiːən/; Ancient Greek: Ἀκταίων Aktaiōn) was the son of the priestly herdsman Aristaeus in Boeotia, and a famous Theban hero. Through his mother Autonoe he was a member of the ruling House of Cadmus. Like Achilles in a later generation, he was trained by the centaur Chiron.
He succumbed to the fatal wrath of Artemis (later his myth became attached to tales of Artemis' Roman counterpart Diana), but the surviving details of his transgression vary: "the only certainty is in what Aktaion suffered, his pathos, and what Artemis did: the hunter became the hunted; he was transformed into a stag, and his raging hounds, struck with a 'wolf's frenzy' (Lyssa), tore him apart as they would a stag."