Gagra District is a district of Abkhazia. It corresponds to the Georgian district by the same name. In medieval times, it was known as the southern part of Sadzen. It is located in the western part of Abkhazia, and the river Psou serves as a border with Krasnodar Krai of Russia. Its capital is Gagra, the town by the same name. The population of the Gagra town zone in 1989 was 77,079, but this number dropped dramatically following the collapse of the Soviet Union and the 1992-1993 war in Abkhazia,, to 37,002 at the time of the 2003 census. Ethnic Armenians now constitute a plurality in the district.

Gagra is a town in Abkhazia/Georgia, sprawling for 5 km on the northeast coast of the Black Sea, at the foot of the Caucasus Mountains. Its subtropical climate made Gagra a popular health resort in Imperial Russian and Soviet times.