Ananuri (Georgian: ანანური ) is a castle complex on the Aragvi River in Georgia, about 45 miles (72 kilometres) from Tbilisi.
Ananuri was a castle and seat of the eristavis (Dukes) of Aragvi, a feudal dynasty which ruled the area from the 13th century. The castle was the scene of numerous battles.
In 1739, Ananuri was attacked by forces from a rival duchy, commanded by Shanshe of Ksani and was set on fire. The Aragvi clan was massacred. However, four years later, the local peasants revolted against rule by the Shamshe, killing the usurpers and inviting King Teimuraz II to rule directly over them. However, in 1746, King Teimuraz was forced to suppress another peasant uprising, with the help of King Erekle II of Kakheti. The fortress remained in use until the beginning of the 19th century. In 2007, the complex has been on the tentative list for inclusion into the UNESCO World Heritage Site program.