Battle of the Wilderness order of battle: Union

The following Union Army units and commanders fought in the Battle of the Wilderness (May 5–7, 1864) of the American Civil War. The Confederate order of battle is listed separately. Order of battle compiled from the army organization May 5, 1864, the casualty returns and the reports.

Military rank

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

Other

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

Forces operating against Richmond
LTG Ulysses S. Grant, General-in-Chief, Union Armies

Escort:
 * 5th United States Cavalry, Companies B, F and K: Cpt Julius W. Mason

IX Corps
MG Ambrose Burnside
 * Chief of Staff: MG John G. Parke

Army of the Potomac
MG George Meade

General Staff:
 * Chief of Staff: MG Andrew A. Humphreys
 * Assistant Adjutant General: BG Seth Williams
 * Chief Quartermaster: BG Rufus Ingalls

General Headquarters:

Provost Guard: BG Marsena R. Patrick
 * 1st Massachusetts Cavalry, Companies C and D: Cpt Edward A. Flint
 * 80th New York (20th Militia): Col Theodore B. Gates
 * 3rd Pennsylvania Cavalry: Maj James W. Walsh
 * 68th Pennsylvania: Ltc Robert E. Winslow
 * 114th Pennsylvania: Col Charles H. T. Collis

Engineer Troops:
 * 50th New York Engineers (11 Companies): Ltc Ira Spaulding
 * Battalion United States Engineers: Cpt George H. Mendell

Guards and Orderlies:
 * Independent Company Oneida (New York) Cavalry: Cpt Daniel P. Mann

II Corps
MG Winfield S. Hancock

Escort:
 * 1st Vermont Cavalry, Company M: Cpt John H. Hazelton

V Corps
MG Gouverneur K. Warren

Provost Guard:
 * 12th New York Battalion: Maj Henry W. Ryder

VI Corps
MG John Sedgwick

Escort:
 * 8th Pennsylvania Cavalry, Company A: Cpt Charles E. Fellows

Cavalry Corps
MG Philip H. Sheridan

Escort:
 * 6th United States: Cpt Ira W. Claflin (Headquarter)
 * 8th Illinois (detachment): Lt William W. Long (Third Division)

Artillery
BG Henry J. Hunt