Lemnos North Aegean Island all tourist business is here, Food & Nightlife, Hotels, Rent a Cars, Rent a Yachts, Rooms to Let, Tours & Cruises, Transfers, Villas for Rent. Lemnos (Greek: Λήμνος) is a Greek island in the northern part of the Aegean Sea. Administratively the island forms a separate municipality within the Lemnos regional unit, which is part of the North Aegean region. The principal town of the island and seat of the municipality is Myrina. It is the 8th-largest island of Greece.