Posof (, formerly ) is a town in Ardahan Province of Turkey, in the far east of the country, 75 km from the city of Ardahan and near the border with Georgia. It is located in the historical region of Samtskhe. It is the administrative centre of the Posof District.İlçe Belediyesi, Turkey Civil Administration Departments Inventory. Retrieved 12 January 2023. Its population is 2,106 (2021).

Geography Posof is high in the mountains near the source of the River Çoruh, much of the district is pine forest. The town consists of the quarters Merkez and Doğrular.Mahalle, Turkey Civil Administration Departments Inventory. Retrieved 16 January 2023.

History Dighviri village, which formed the basis of the town of Posof, was a Georgian settlement when the Ottomans captured it from the Georgians.გურჯისტანის ვილაიეთის დიდი დავთარი: გამოკვლევა: წიგნი III), Sergi Jikia, Tbilisi, 1947-1958, 3 column, III. column (1958), p. 435.გურჯისტანის ვილაიეთის დიდი დავთარი: გამოკვლევა: წიგნი III), Sergi Jikia, Tbilisi, 1947-1958, 3 column, II. column (1941), pp. 296-297. The inhabitants of the village were recorded as Turk in the 1886 Russian census.Свод статистических данных о населении Закавказскаго края, извлеченных из посемейных списков 1886 г., Tbilisi, 1893, "Kars oblast" - 366 When Dighviri village became the administrative centre of the town of Posof in 1929, its name was also changed to Posof. In the 1940 general census, only 1,330 people lived in the town of Posof. By 1965, the town's population had risen to 1,540, of whom 818 were literate.

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