This article is about a figure in Greek mythology. For the genus of parasitic wasps, see Ophion (insect).
In some versions of Greek mythology, Ophion (/oʊˈfaɪən/; ‹See Tfd›Greek: Ὀφίων "serpent"; gen.: Ὀφίωνος), also called Ophioneus (Ὀφιονεύς) ruled the world with Eurynome before the two of them were cast down by Cronus and Rhea.