Kos Kos Kos or Cos (; ) is a Greek island, part of the Dodecanese island chain in the southeastern Aegean Sea, off the Anatolian coast of Turkey. Kos is the third largest island of the Dodecanese by area, after Rhodes and Karpathos; it has a population of 33,388 (2011 census), making it the second most populous of the Dodecanese, after Rhodes. The island measures , and is from the coast of the ancient region of Caria in Turkey. Administratively, Kos constitutes a municipality within the Kos regional unit, which is part of the South Aegean region. The principal town of
Dodecanese civilian governor, Count , as "Viceroy of the Dodecanese". As the name was associated with Greek irredentism, from 1924 Mussolini's Fascist regime tried to abolish its use by referring to them as the "Italian Islands of the Aegean", but this name never acquired any wider currency outside Italian administrative usage. The islands joined Greece in 1947 following as the "Governorate-General of the Dodecanese" (Γενική Διοίκησις Δωδεκανήσου), since 1955 the "Dodecanese Prefecture" (Νομός Δωδεκανήσου). The Dodecanese have been inhabited since prehistoric times. In the Neopalatial period on Crete, the islands were heavily Minoanized (contact beginning in the second millennium BC). Following