| 99th Indiana Volunteer Infantry Regiment | |
|---|---|
.svg) Flag of the United States, 1863-1865 | |
| Active | August 21, 1862, to June 5, 1865 |
| Country | United States |
| Allegiance | Union |
| Branch | Infantry |
| Engagements | Siege of Vicksburg Battle of Missionary Ridge Battle of Resaca Battle of Dallas Battle of Big Shanty Battle of Kennesaw Mountain Battle of Atlanta Battle of Jonesborough Battle of Bentonville |
The 99th Indiana Volunteer Infantry Regiment was an infantry regiment that served in the Union Army during the American Civil War.