Žirje is an island in Croatian in the Adriatic Sea. It is situated in the Šibenik archipelago, about 22 km southwest of Šibenik, which makes it the most distant permanently inhabited island in the Šibenik archipelago. The only settlement on the island is also named Zirje. In 12th and 13th century the island was encircled by fortresses and walls and are a reminder of the Byzantine fortress from 6th century are situated at island.