The 6th Regiment, Vermont Volunteer Infantry (or 6th VVI) was a three years' infantry regiment in the Union Army during the American Civil War. It served in the Eastern Theater, predominantly in the VI Corps, Army of the Potomac, from October 1861 to June 1865. It was a member of the Vermont Brigade. Throughout the 6th Vermont's service, 189 men were killed and mortally wounded in combat, 2 died from non-combat related accidents, 20 died in Confederate prisons and 189 died from disease for a total loss of 400 men. The regiment mustered out of service on June 26, 1865.