List of Union units from West Virginia in the American Civil War

West Virginia, which seceded from Virginia to join the Union, provided the following units to the Union Army during the American Civil War. Units raised in the western counties prior to the creation of the state of West Virginia were often known as, "loyal Virginians," who formed the Restored government of Virginia in Wheeling, West Virginia in 1861, unanimously electing Francis H. Pierpont as the new state governor.

Source: Wikipedia — List of Union units from West Virginia in the American Civil War (CC BY-SA 4.0)