Agios Kirykos is a town and a former
municipality on the island of
Ikaria,
North Aegean,
Greece. Since the 2011 local government reform it is part of the municipality
Ikaria, of which it is a municipal unit. Its population was 3,243 at the 2001 census, and its land area is . It is the administrative capital of Ikaria and the Ikaria regional unit (which includes the islands of Fourni).