Elaeus or Elaious (Ancient Greek: Ἐλαιοῦς) or Elaios (Ἐλαῖος) was an emporium or trading place on the coast of Bithynia at the mouth of a river of the same name. Elaeus was 120 stadia west of Cales.
It is located on the north coast of modern Turkey, at the mouth of its name-sake river.
References
This article incorporates text from a publication now in the public domain: Smith, William, ed. (1854–1857). "Elaeus". Dictionary of Greek and Roman Geography. London: John Murray.




