Lesbos (, also ; ) is a Greek island located in the northeastern Aegean Sea, often called Mytilene in Greece, after its capital. It has an area of with of coastline, making it the third largest island in Greece. It is separated from Turkey by the narrow Mytilini Strait and in late Palaeolithic/Mesolithic times was joined to the Anatolian mainland before the end of the Last Glacial Period. Its capital is Mytilene, and the island as a whole was formerly often called Mytilene.