Üyük is a village in Seydiler District, in Kastamonu Province, Türkiye. Üyük lies at 1,070 m above sea level, 2.4 km from the Küre mountains. It has 150 inhabitants. The nearest city is Kastamonu, 33 km to the south. Among the landmarks around are Mahmut Bey Mosque (21 km), Beyler Dam (7.3 km) and Çatak Dam (13.0 km).