Ameinias or Aminias (Ancient Greek: Ἀμεινίας) was a younger brother of the playwright Aeschylus and of a hero of the battle of Marathon named Cynaegirus. He also had a sister, named Philopatho, who was the mother of the Athenian tragic poet Philocles. His father was Euphorion. Ameinias was from the Attica deme of Pallene according to Herodotus, or of that of Decelea according to Plutarch. He distinguished himself at the battle of Salamis as a trireme commander. His brother Aeschylus, also fought at the battle.