Tbilisi, in some languages still known by its pre-1936 name Tiflis, is the capital and largest city of Georgia, lying on the banks of the Kura River with a population of around 1.2 million people. Tbilisi was founded in the fifth century AD by Vakhtang I of Iberia, and since then has served as the capital of various Georgian kingdoms and republics. Between 1801 and 1917, then part of the Russian Empire, Tiflis was the seat of the Caucasus Viceroyalty, governing both the northern and the southern parts of the Caucasus.

Georgian is the most widely spoken Kartvelian language; it also serves as the literary language or lingua franca for speakers of related languages. It is the official language of Georgia and the native or primary language of 87.6% of its population. Its speakers today amount to approximately 3.76 million. Georgian is written in its own unique alphabet.