Dereyolu is a village in Mutki District, in Bitlis Province, Türkiye. Dereyolu lies at 1,693 m above sea level, in the Southeastern Taurus mountains. It has 830 inhabitants. The nearest city is Bitlis, 12.4 km to the east. Among the landmarks around are Nemrut (36 km), Amardolu Monastery (13.1 km) and Saint John Monastery, Por (17.1 km).