Bükköy is a village in Devrek District, in Zonguldak Province, Türkiye. Bükköy lies at 94 m above sea level, 0.2 km from the Akçakoca Dağları mountains. It has 371 inhabitants. The nearest city is Devrek, 11.7 km to the southwest. Among the natural features are Çayırköy Cave (18.3 km) and Kızılelma Cave (20 km).

Also written Bük.