The Alytus District Municipality is a municipality in Lithuania, located in the Dzūkija ethnographic region.
This municipality was founded in 1950, and until 1953 was a part of the Kaunas Province. In 1959, another reorganization of parts of the former Simnas and Daugai municipalities occurred, which included the towns of Simnas and Daugai. In 1962 it was expanded more, attaching part of the former Jieznas municipality. In 1968 parts of the municipality were attached to the Prienai District Municipality and Trakai District Municipality, and 1969 another part of Varėna District Municipality.
The current Coat of Arms of the Alytus district municipality was announced by Lithuanian presidential decree on August 7, 2001.
Biggest population (2001):
Coordinates: 54°22′N 24°07′E / 54.367°N 24.117°E