Lachin District is one of the 66 districts of Azerbaijan. It is located in the west of the country, belonging to the East Zangezur Economic Region. The district borders the districts of Kalbajar, Khojaly, Shusha, Khojavend, Qubadli, and the Syunik Province of Armenia. Its capital and largest city is Lachin. As of 2020, the district had a nominal population of 78,600.