| Army of the Mississippi | |
|---|---|
| Active | February 23, 1862 - October 1863 |
| Country |  United States of America |
| Branch |  United States Army |
| Type | Field Army |
| Engagements | American Civil War |
Army of the Mississippi was the name given to two Union armies that operated around the Mississippi River, both with short existences, during the American Civil War.