Kokarsu is a village in Bitlis District, in Bitlis Province, Türkiye. Kokarsu lies at 1,737 m above sea level, in the İhtiyarşahap Dağı mountains. It has 208 inhabitants. The nearest city is Tatvan, 13.0 km to the north. Among the landmarks around are Nemrut (27 km), Saint Anania monastery (9.1 km) and Saint John Monastery, Por (11.0 km).