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
| Division | Brigade | Regiments and Others |
|---|---|---|
|
1st Division
|
1st Brigade | |
| 2nd Brigade |
| |
|
2nd Division
|
1st Brigade
Col William H. Worthington |
|
| 2nd Brigade
Col Miklós Perczel |
| |
| Artillery |
| |
|
3rd Division
|
1st Brigade
Col James R. Slack |
|
| 2nd Brigade
Col Graham N. Fitch |
| |
| Cavalry | ||
|
4th Division
|
1st Brigade
Col James D. Morgan |
|
| 2nd Brigade |
| |
| Cavalry |
| |
| Sharpshooters |
| |
|
5th Division
|
1st Brigade |
|
| 2nd Brigade |
| |
| Artillery |
| |
|
|
Cavalry Division
|
|
| Artillery Division |
| |
| Unattached |
| |
| Flotilla Brigade |
|
Union Navy Western Flotilla
Flag Officer Andrew H. Foote
17k, 34w, 3m = 54
| Vessels |
|---|
| USS Benton
Lt Commander Seth L. Phelps |
| USS Mound City
Commander Augustus H. Kilty |
| USS Carondelet
Commander Henry Walke |
| USS Cincinnati
Commander Roger N. Stembel |
| USS St. Louis (later USS Baron De Kalb)
Lt Leonard Paulding |
| USS Pittsburg
Lt Egbert Thompson |