Odabaşı is a village in Tatvan District, in Bitlis Province, Türkiye. Odabaşı lies at 1,972 m above sea level, in the İhtiyarşahap Dağı mountains. It has 37 inhabitants. The nearest city is Tatvan, 27 km to the northwest. Among the landmarks around are Monastery of Surp Gevork of Goms (13.5 km) and Nemrut (39 km).