İsabeyli is a village in Devrek District, in Zonguldak Province, Türkiye. İsabeyli lies at 497 m above sea level, in the Akçakoca Dağları mountains. It has 306 inhabitants. The nearest city is Devrek, 6.6 km to the east. Among the landmarks around are Heraclea Pontica (40 km) and Kızılcapınar Dam (22 km).