Derebulaca is a village in Devrek District, in Zonguldak Province, Türkiye. Derebulaca lies at 400 m above sea level, in the Akçakoca Dağları mountains. It has 189 inhabitants. The nearest city is Devrek, 13.7 km to the northeast. Among the landmarks around are Heraclea Pontica (38 km), Köprübaşı Dam (19.2 km) and Kızılcapınar Dam (20 km).