Karşıköy is a village in Taşköprü District, in Kastamonu Province, Türkiye. Karşıköy lies at 622 m above sea level, 0.7 km from the Ilgaz mountains. It has 420 inhabitants. The nearest city is Kastamonu, 28 km to the west. Among the landmarks around are Pompeiopolis (12.0 km), Mahmut Bey Mosque (33 km) and Karadere Dam (12.5 km).