Sipahiler is a village in Devrek District, in Zonguldak Province, Türkiye. Sipahiler lies at 586 m above sea level, in the Akçakoca Dağları mountains. It has 246 inhabitants. The nearest city is Devrek, 16.3 km to the northeast. Among the landmarks around are Heraclea Pontica (39 km), Köprübaşı Dam (16.2 km) and Kızılcapınar Dam (22 km).