| 8th Iowa Infantry Regiment | |
|---|---|
 Iowa state flag | |
| Active | August 31, 1861, to April 20, 1866 |
| Country | United States |
| Allegiance | Union |
| Branch | Infantry |
| Engagements | Battle of Shiloh Siege of Corinth Siege of Vicksburg Red River Campaign Battle of Spanish Fort |
The 8th Iowa Infantry Regiment was an infantry regiment that served in the Union Army during the American Civil War. It served mostly in the Western Theater with the Army of the Tennessee.