Island Number Ten Union order of battle
The following Union Army and Union Navy units and commanders fought in the Battle of Island Number Ten during the American Civil War. Abbreviations used

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

Army of the Mississippi
Major General John Pope

Assistant Adjutant General: Maj Speed Butler
Assistant Inspector General: Maj John M. Corse
Siege Train: Cpt Joseph A. Mower
Medical Director: Surgeon O. W. Nixon

Union Navy Western Flotilla
Flag Officer Andrew H. Foote
17k, 34w, 3m = 54

American Civil War orders of battle