Halilbeyoğlu is a village in Devrek District, in Zonguldak Province, Türkiye. Halilbeyoğlu lies at 268 m above sea level, in the Akçakoca Dağları mountains. It has 543 inhabitants. The nearest city is Devrek, 3.5 km to the northeast. Among the landmarks around are Heraclea Pontica (44 km).