Cave City of Vardzia (, Georgian ვარძია) is a cave monastery dug into the side of the Erusheli mountain in south Georgia near Aspindza. It was founded by Queen Tamar in 1185.

The monastery consisted of over six thousand apartments created as protection from Mongols into the hidden thirteen floors high complex. The city included a church, throne room, and a complex irrigation system watering terraced farmlands. Only access to the complex was through some well hidden tunnels near the Mtkvari river.

An earthquake in Samtskhe destroyed approximately two thirds of the city in 1283, exposing the caves to outside view and collapsing the irrigation system.

The church was reinforced and an externally visible bell tower added during the reign of Beka Jakheli in the thirteenth century.

Persians commanded by Shah Tahmasp I raided the monastery in 1551, capturing all important icons and effectively ending the life of the monastery.