Elaea /ɪˈliːə/ (Greek: Ελαία Elaíā) was mentioned by Pliny (Natural History, v.32) as the ancient name of an island in the Propontis (Sea of Marmara), in Bithynia. It was one of the Demonisi group (Princes' Islands), but it is not certain which of the several small islands Pliny referred to.

References

• Smith, William (editor), "Elaea", Dictionary of Greek and Roman Geography (London: Walton and Maberly, Murray, 1854)
• Hazlitt, William, "Elæa", The Classical Gazetteer (London: Whittaker, 1851)

 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.