Barda is a city and the capital of the Barda District in Azerbaijan, located south of Yevlax and on the left bank of the Tartar river. It served as the capital of Caucasian Albania by the end of the 5th-century. Barda became the chief city of the Islamic province of Arran, the classical Caucasian Albania, remaining so until the tenth century.

Caucasian Albania is a modern exonym for a former state located in ancient times in the Caucasus, mostly in what is now Azerbaijan. The modern endonyms for the area are Aghwank and Aluank, among the Udi people, who regard themselves as descended from the inhabitants of Caucasian Albania. However, its original endonym is unknown.