Vilnius Region[a] is the territory in present-day Lithuania and Belarus that was originally inhabited by ethnic Baltic tribes and was a part of Lithuania proper, but came under East Slavic and Polish cultural influences over time.

The Vilna Governorate was a province (guberniya) of the Northwestern Krai of the Russian Empire. In 1897, the governorate covered an area of 41,907.9 square kilometres (16,180.7 sq mi) and had a population of 1,591,207 inhabitants. The governorate was defined by the Minsk Governorate to the south, the Grodno Governorate to the southwest, the Suwałki Governorate to the west, the Kovno and Courland Governorates to the north, and the Vitebsk Governorate to the east. The capital was located in Vilna (Vilnius). The city also served as the capital of Vilna Governorate-General, which existed until 1912. The area roughly corresponded to the Vilnius Region, which was later occupied by Germany, Bolsheviks, and Poland.