Vorotnaberd (Armenian: Որոտանաբերդ; also Davit Bek's Castle) is an important fortress along a ridge overlooking the Vorotan gorge, between the villages of Vaghatin and Vorotan in the Syunik Province of Armenia.

In 1104 (possibly in 1219 as well) Seljuk-Turks attacked the fortress and the nearby monastery of Vorotnavank 3 kilometres (2 mi) northwest.

Ivane Zakaryan liberated the structures from enemy hands and gave control of Vorotnavank and Vorotnaberd to Liparit Orbelian of the Orbelyan family.

An underground passageway connected to Vorotnavank and the Vorotan River was used during sieges by invading armies.

This incident led people living in the region to call the fortress by the name "Davit Bek's Castle".