Kapan , is a town in southeast Armenia and the capital of the Syunik Province. It is located south of the capital Yerevan, on the northern slopes of Mount Khustup, in the valley of Voghji River. According to the 2011 census, the population of Kapan is 43,190, slightly declined from 45,711 in the 2001 census. Kapan is the most populous town in the Syunik Province and the entire region of southern Armenia.