Hacıkaş is a neighborhood in Erciş District, in Van Province, Türkiye. Hacıkaş lies at 2,066 m above sea level, in the Ala Dag mountains. It has 781 inhabitants. The nearest city is Erciş, 12.5 km to the southwest. Among the landmarks around are Koçköprü Dam (7.6 km) and Monastery of Artsvaber (9.5 km).