Battle of Prairie Grove order of battle: Union

The following Union Army units and commanders fought in the Battle of Prairie Grove of the American Civil War on December 7, 1862, in Washington County, Arkansas. The Confederate order of battle is listed separately.

Military rank

 * MG = Major General
 * BG = Brigadier General
 * Col = Colonel
 * Ltc = Lieutenant Colonel
 * Maj = Major
 * Cpt = Captain

Other

 * w = wounded
 * mw = mortally wounded
 * k = killed

Army of the Frontier
MG James G. Blunt 9,216 men on the battlefield