Epeium or Epeion (Ancient Greek: Ἤπειον or Ήπειον) or Epium or Epion (Ἔπιον or Ήπιον) or Aepion or Aipion (Αἰπίον or Αἴπιον) was a town of Triphylia in ancient Elis, which stood between Makistos and Heraea, and may have been the successor settlement to Homeric Aepy. It is one of the six cities (along with Lepreum, Macistus, Phrixae, Pyrgus, and Nudium) founded by the Minyans in the territory of and Caucones.