Vahanavank, Medieval monastery in Kapan, Armenia

Vahanavank is an Armenian monastery on the right bank of the Voghji River, on the slope of Tigranasar. Its oldest structure, the Church of Surb Grigor Lusavorich, is a domed hall with a pair of sacristies and a drum raised on pointed rocks. A smaller Church of Surb Astvatsatsin, built 25 m away in the 11th century, has an inscription from 1086 on a stone near the base of its east wall.

Vahanavank's oldest structure, the Church of St Gregory the Illuminator, was built in 911, five years after the consecration of Tatev Monastery, under the patronage of Prince Vahan Syuni, son of Dzaghik of Baghk. In the second half of the 11th century a smaller Church of St Astvatsatsin was added 25 m from the main church; an inscription on its east wall records its construction in 1086. The monastery held about 100 monks and ran a monastic school whose pupils included Vahan I Syunetsi, nephew of the founder.

Vahanavank holds the tombs of the Syunik kings and princes, among them King Vasak (died 1051), King Grigor I (died 1072) and Princess Sofi, mother of King Senekerim (died 1081). The monastery's name comes from its founder, Prince Vahan, who according to Stepanos Orbelian took up a monk's habit to be cured of demonic possession.

Vahanavank lies 7 km west of Kapan, on the right bank of the Voghji River on the slope of Tigranasar. The road climbs through mountainous terrain; the complex is reached on foot from the parking area. Excavations since 1966 and restoration since 1978 have consolidated the buildings, with major work in 2006–2009.

The columned hall features fourteen bays with red decorative details displaying animal and plant designs, representing one of the less noticed details of the complex. These carved ornaments reveal the craftsmanship and artistic skill of the period.