In Greek mythology, Bergion (Ancient Greek: Βεργίων) or Beergios was a son of Poseidon and brother of Alebion. The two brothers engaged into battle with Heracles at Liguria of North-Western Italy. This version was mentioned in Aeschylus' play Promētheus Lyomenos, now lost. In some sources, he was named as or (Δέρκυνος).