Vilnius District Municipality (Lithuanian: Vilniaus rajono savivaldybė) is one of the 60 municipalities in Lithuania. It surrounds the capital city of Vilnius on three sides. The municipality is also bordered by Trakai district and Elektrėnai municipality in the west, Astravyets and Ashmyany districts of Belarus in the east, Širvintos, Molėtai and Švenčionys districts in the north and Šalčininkai district in the south.
The population of the district is one of the fastest growing in Lithuania because of the migration of Vilnius' inhabitants to the suburbs. It stood at 116,584 in January 2024, up from 84 thousand in the early 1990s, meaning an increase by more than a third in less than 30 years.