The Restored Government of Virginia was the Unionist government of Virginia during the American Civil War (1861–1865) in opposition to the government which had approved Virginia's seceding from the United States and joining the new Confederate States of America. Each state government regarded the other as illegitimate. The Restored Government attempted to assume de facto control of the Commonwealth's northwest with the help of the Union Army but was only partly successful. It raised Union regiments from local volunteers but depended upon recruits from Pennsylvania and Ohio to fulfill its commitments. It administered this territory until, with its approval, the area became part of West Virginia in mid-1863.

During the American Civil War, the United States was referred to as simply the Union, also known colloquially as the North, after eleven Southern slave states seceded to form the Confederate States of America (CSA), which was called the Confederacy, also known as the South. The name the "Union" arose from the declared goal of the United States, led by President Abraham Lincoln, of preserving the United States as a constitutional federal union.