The North Aegean (Περιφέρεια Βορείου Αιγαίου) is one of the thirteen administrative regions of Greece. It comprises the islands of the north-eastern Aegean Sea, called the North Aegean islands, except for Thasos and Samothrace, which belong to the Greek region of Eastern Macedonia and Thrace, and Imbros and Tenedos, which belong to Turkey.
The North Aegean region was established in the 1987 administrative reform. With the 2010 Kallikratis plan, its powers and authority were redefined and extended. Along with the Southern Aegean region, it is supervised by the Decentralized Administration of the Aegean based at Piraeus. The capital of the region is situated in Mytilene on the island of Lesbos.
Until the Kallikratis reform, the region consisted of the three prefectures of Samos, Chios and Lesbos. Since 1 January 2011 it is divided into five regional units, formed around: Chios, Ikaria, Lemnos, Lesbos and Samos. The total number of islands in the North Aegean region are nine: Lesbos, Chios, Psara, Oinousses, Ikaria, Fournoi Korseon, Lemnos, Agios Efstratios and Samos.