The Georgia–Turkey border (Georgian: საქართველო–თურქეთის საზღვარი, Turkish: Gürcistan–Türkiye sınırı) is 273 km (170 miles) in length and runs from the Black Sea coast in the west to the tripoint with Armenia in the east.

[2] The border starts in the west on the Black Sea just south of Sarpi and then proceeds overland eastwards via a series of irregular lines; it then arcs broadly south-eastwards, cutting across Kartsakhi Lake, and down to the Armenian tripoint.

[3] By the 1829 Treaty of Adrianople (ending the Russo-Turkish War of 1828–9) Russia gained most of modern Georgia (including Imeretia, Mingrelia and Guria), with a frontier being delimited situated roughly north of the current Georgia-Turkey boundary.

[4][7][8] Russia's gains of Batumi, Kars and Ardahan were confirmed by the Treaty of Berlin (1878), though it was compelled to hand back part of the area around Bayazid (modern Doğubayazıt) and the Eleşkirt valley.

[4] Seeking to gain independence from both empires, the peoples of the southern Caucasus had declared the Transcaucasian Democratic Federative Republic in 1918 and started peace talks with the Ottomans.

[4][15] The treaty recognised Georgian and Armenian independence, granting both vast lands in eastern Turkey, with an extended Armenia-Georgia border to be decided at a later date; Georgia was to gain much of Lazistan.