Poseidion (also Posidion or Poseideion, from Poseidon) was a frequent Greek placename along coastlines in the classical antiquity: Another name of Poseidium (Karpathos), an ancient city on Karpathos Cape Poseidion (Arabia), a promontory in the Red Sea Ancient name of Ras al-Bassit, a small town in Syria
See also Poseidium (disambiguation)