Boyundurcak is a village in Taşköprü District, in Kastamonu Province, Türkiye. Boyundurcak lies at 656 m above sea level, 3.0 km from the Ilgaz mountains. It has 422 inhabitants. The nearest city is Kastamonu, 21 km to the west. Among the landmarks around are Mahmut Bey Mosque (27 km), Pompeiopolis (19.0 km) and Nasrullah Mosque (21 km).