Sarıyonca is a village in Devrekani District, in Kastamonu Province, Türkiye. Sarıyonca lies at 1,155 m above sea level, 3.0 km from the Küre mountains. It has 154 inhabitants. The nearest city is Kastamonu, 23 km to the south. Among the landmarks around are Mahmut Bey Mosque (13.5 km), Beyler Dam (10.8 km) and Kulaksızlar Dam (13.7 km).