Irmak is a neighborhood in Cide District, in Kastamonu Province, Türkiye. Irmak lies at 92 m above sea level, in the Küre mountains. The nearest city is Bartın, 58 km to the west. Beaches nearby: Gebeş (2.6 km). Among the landmarks around are Cytorus (7.5 km) and Cromna (18.9 km). Among the natural features are Dağlı Kuylucu Cave (15.3 km).

Also written Irmakköy.