| 3rd Iowa Cavalry Regiment | |
|---|---|
 Iowa state flag | |
| Active | August 30, 1861, to August 9, 1865 |
| Country | United States |
| Allegiance | Union |
| Branch | Cavalry |
| Engagements | Battle of Pea Ridge Siege of Vicksburg Battle of Brice's Crossroads Battle of Mine Creek Battle of Egypt Station Battle of Columbus |
The 3rd Iowa Cavalry Regiment was a cavalry regiment that served in the Union Army during the American Civil War.