The following is a list of the units of the United States Regular Army during the American Civil War.
Infantry 1st Infantry Regiment 2nd Infantry Regiment 3rd Infantry Regiment 4th Infantry Regiment 5th Infantry Regiment 6th Infantry Regiment 7th Infantry Regiment 8th Infantry Regiment 9th Infantry Regiment 10th Infantry Regiment 11th Infantry Regiment 12th Infantry Regiment 13th Infantry Regiment 14th Infantry Regiment 15th Infantry Regiment 16th Infantry Regiment 17th Infantry Regiment 18th Infantry Regiment 19th Infantry Regiment
Cavalry 1st Cavalry Regiment 2nd Cavalry Regiment 3rd Cavalry Regiment 4th Cavalry Regiment 5th Cavalry Regiment 6th Cavalry Regiment
Artillery 1st Artillery Regiment Battery A Battery B Battery C Battery D Battery E Battery F Battery G Battery H Battery I Battery K Battery M 2d Artillery Regiment Battery A Battery E Battery G 3d Artillery Regiment 4th Artillery Regiment Battery A Battery B Battery C Battery E Battery G Battery H Battery I Battery K Battery M 5th Artillery Regiment Battery A Battery C Battery D Battery H Battery I Battery K
References Union Regiments - US Regular Army
See also Lists of American Civil War Regiments by State