77th Illinois Infantry Regiment
| 77th Regiment Illinois Volunteer Infantry | |
|---|---|
Regimental Flag of the 77th Illinois Infantry | |
| Active | September 3, 1862, to July 10, 1865 |
| Country | United States |
| Allegiance | Union |
| Branch | Infantry |
| Engagements | Battle of Port Gibson Siege of Vicksburg Battle of Champion Hill Red River Campaign |
The 77th Regiment Illinois Volunteer Infantry was an infantry regiment that served in the Union Army during the American Civil War.