The Baku–Tbilisi–Kars, or Baku–Tbilisi–Akhalkalaki–Kars railway, is a railway connecting Azerbaijan, Georgia and Turkey, which became operational on 30 October 2017 following several years of delays.

Kars is a city in northeast Turkey. It is the seat of Kars Province and Kars District. As of 2022, its population was 91,450. Kars, in classical historiography, was in the ancient region known as Chor