Siege of Corinth order of battle: Union

The following units and commanders of the Union Army fought at the Siege of Corinth (29 Apr-30 May 1862) of the American Civil War. The Union Army had approximately 150,000 present for duty. The Confederate order of battle is shown separately. Order of battle compiled from the army organization during the siege.

Military Rank

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

Other

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

Department of the Mississippi
MG Henry W. Halleck
 * Second-in-Command: MG Ulysses S. Grant
 * Chief of Staff and Chief Engineer: BG George W. Cullum
 * Chief of Cavalry: BG Andrew J. Smith
 * Chief Topographical Engineer: Col George Thom
 * Aide de Camp: Col Norton Parker Chipman
 * Assistant Adjutant General: Cpt John C. Kelton

District of West Tennessee
MG Ulysses S. Grant
 * Chief of Staff: Col Joseph D. Webster
 * Aide de Camp: Col James B. McPherson
 * Provost Marshal General: Col William S. Hillyer after 3 May
 * Provost Marshal General: Ltc DeWitt C. Anthony until May'
 * Assistant Adjutant General: Cpt John A. Rawlins
 * Chief Commissary: Cpt John Parker Hawkins

Right Wing (Army of the Tennessee)
MG George H. Thomas
 * Chief of Staff and Asst. Adjutant General: Cpt George E. Flynt

Reserves (Army of the Tennessee)
MG John A. McClernand
 * Assistant Inspector General: Col Thomas E. G. Ransom

Center (Army of the Ohio)
MG Don Carlos Buell
 * Chief of Staff: Col James Barnet Fry
 * Assistant Inspector General: Maj Adam J. Slemmer
 * Assistant Inspector General: Cpt Charles Champion Gilbert
 * Assistant Quartermaster: Cpt Alvan C. Gillem (until May 1862)
 * Assistant Quartermaster: Cpt Andrew J. Mackay (May 1862)
 * Chief Engineer: Cpt James St. Clair Morton

Left Wing (Army of the Mississippi)
MG John Pope
 * Chief of Staff: BG Washington L. Elliott after 12 June
 * Assistant Adjutant General: Maj Speed Butler
 * Assistant Inspector General: Maj John M. Corse
 * Assistant Quartermaster: Cpt Philip H. Sheridan

Right Wing
MG William S. Rosecrans assigned 29 May

Left Wing
BG Schuyler Hamilton assigned 29 May