Nagidos was an ancient city of Cilicia. In ancient times it was located between Anemurion to the west and Arsinoe to the east. Today its ruins are found on the hill named Paşabeleni at the mouth of the Sini Cay near Bozyazı in Mersin Province, Turkey. It lies at a distance of ca. 20 km to the east of Anamur. Like its eastern neighbor Kelenderis, it was a colony of Samos. The small island of Nagidoussa is opposite Nagidos; on it are the ruins of an Ottoman fortress.