Üçgen is a neighborhood in Gürpınar District, in Van Province, Türkiye. Üçgen lies at 2,153 m above sea level, in the Erek Dağı mountains. It has 428 inhabitants. The nearest city is Bostaniçi, 31 km to the northwest. Among the landmarks around are Hoşap Castle (8.4 km), Çavuştepe (25 km) and Varagavank (26 km).