25th Illinois Infantry Regiment
| 25th Regiment Illinois Volunteer Infantry | |
|---|---|
Illinois state flag | |
| Active | August 4, 1861, to September 5, 1864 |
| Country | United States |
| Allegiance | Union |
| Branch | Infantry |
| Engagements | American Civil War |
The 25th Regiment, Illinois Volunteer Infantry, was an infantry regiment that served in the Union Army during the American Civil War.