Elaea[pronunciation?] or Elaia (Greek: Ελαία) was the ancient name of an island in the Propontis (Sea of Marmara), in Bithynia, mentioned by Pliny (v. 32); but it is not certain which of the several small islands he means. It was one of the Demonisi group.
- Smith, William (editor); Dictionary of Greek and Roman Geography, "Elaea", London, (1854)
- Hazlitt, Classical Gazetteer, "Elaea" Archived 2011-06-05 at the Wayback Machine. This article incorporates text from a publication now in the public domain: Smith, William, ed. (1854–1857). "Elaea". Dictionary of Greek and Roman Geography. London: John Murray.