The Akhalkalaki uezd was a county (uezd) of the Tiflis Governorate of the Caucasus Viceroyalty of the Russian Empire, and then of Democratic Republic of Georgia, with its administrative centre in Akhalkalak. The county bordered the Gori uezd to the north, the Borchaly uezd to the east, the Alexandropol uezd of the Erivan Governorate and the Kars and Ardahan okrugs of the Kars Oblast to the south, and the Akhaltsikhe uezd to the west. The area of the county corresponded to part of the contemporary Samtskhe–Javakheti region of Georgia.