Knoxville campaign order of battle: Union

The following Union Army units and commanders fought in the Knoxville Campaign and subsequent East Tennessee operations during the American Civil War from November 4 to December 23, 1863 under the command of Maj. Gen. Ambrose E. Burnside. Engagements fought during this time included the battles of Campbell's Station and Fort Sanders and the siege of Knoxville. Order of battle compiled from the army organization during the campaign and return of casualties. The Confederate order of battle is shown separately.

Military rank

 * MG = Major General
 * BG = Brigadier General
 * Col = Colonel
 * Ltc = Lieutenant Colonel
 * Maj = Major
 * Cpt = Captain
 * Lt = 1st Lieutenant

Other

 * mw = mortally wounded
 * k = killed

Army of the Ohio
MG Ambrose E. Burnside (March 25–December 11, 1863) MG John G. Foster (December 11, 1863 – February 9, 1864)

General Headquarters (Staff: 14 officers)
 * Chief of Staff: MG John G. Parke
 * Escort: 6th Indiana Cavalry: Col James Biddle

IX Corps
BG Robert B. Potter

XXIII Corps
BG Mahlon D. Manson (September 24–December 20, 1863) Jacob Dolson Cox (December 21, 1863 – February 8, 1864)

General Headquarters (Staff and escort: 14 officers, 95 men)
 * Chief of Engineers: Col Orlando M. Poe
 * McLaughlin's Ohio Cavalry Squadron: Maj Richard Rice

Cavalry Corps
BG James M. Shackelford BG Samuel D. Sturgis (December 12, 1863 – April 15, 1864)

Left Wing Forces
BG Orlando B. Willcox