Berdavan Fortress, Medieval fortress in Tavush Region, Armenia.

Berdavan Fortress is a stone fortification with eleven semi-cylindrical towers positioned around a hilltop, with walls ranging from 5.5 to 10.5 meters in height. The towers are closely spaced to create a strong defensive perimeter around the site.

The fortress is identified with Ghalinjakar, which the 13th-century Georgian chronicler says King David IV the Builder retook from the Seljuks in 1123. Tradition also holds that King Ashot II Yerkat stopped here for several days during one of his campaigns. The standing walls are late medieval, dated by their masonry and pointed portal to around the 17th century. Restoration began in 1983, clearing rubble and rebuilding the cracked upper parts of walls and towers.

In the cemetery by the church stands a large tevavor khachkar, a cross stone with arms, set on a cube-shaped pedestal. Its face is carved in panels with crosses and standing human figures. A chapel 50 metres south of the church holds two 12th- or 13th-century khachkars on a high pedestal.

The main entrance is located in the western wall through a portal about one meter wide, with stairs positioned to the south of it. This single access point is important to note when planning your route around the site.

The fortress walls contain earlier carved fragments set at random, including one in the southwest corner tower showing an equal-armed cross inside a circle with traces of a scroll border. The single entrance has a brick arrow-shaped top, and 12–15 cm slit windows look inward from high in the walls.