The 13th Virginia Volunteer Infantry Regiment was an infantry regiment raised in Virginia for service in the Confederate States Army during the American Civil War. It fought mostly with the Army of Northern Virginia. The 13th Virginia completed its organization during the summer of 1861 with men from Winchester and Culpeper, Orange, Louisa, and Hampshire counties. The original Companies B and E enlisted only for 6 months, the others for one year. At the end of that year, their service was extended for the duration of the war.