Hisarköy is a village in Ulus District, in Bartın Province, Türkiye. Hisarköy lies at 559 m above sea level, in the Akçakoca Dağları mountains. It has 552 inhabitants. The nearest city is Safranbolu, 24 km to the southeast. Among the landmarks around are Kazdağlı Mosque (25 km), Clitae (18.8 km) and İzzet Mehmet Pasha Mosque (24 km).