Tellioğlu is a village in Devrek District, in Zonguldak Province, Türkiye. Tellioğlu lies at 467 m above sea level, in the Akçakoca Dağları mountains. It has 218 inhabitants. The nearest city is Devrek, 10.4 km to the east. Among the landmarks around are Heraclea Pontica (37 km) and Kızılcapınar Dam (18.9 km).