| Unit Name: | 101st Indiana Infantry Regiment |
| Dates: | September 7, 1862 – June 24, 1865 |
| Country: |  United States |
| Allegiance: | Union |
| Branch: | Infantry |
| Size: | Regiment |
| Battles: | American Civil War
|
| Disbanded: | June 24, 1865 |
| Notable Commanders: | William Garver Thomas Doan George W. Steele |
The 101st Regiment, Indiana Volunteer Infantry was an infantry regiment that served in the Union Army during the American Civil War. It fought in several major campaigns and battles in the Western Theater, including the Atlanta Campaign and the Carolinas Campaign. In 1862, the regiment was formed under the Army of the Ohio. From 1863 to 1865, attached to the Army of the Cumberland, XIV Army Corps.
Organized at Wabash, Ind., and mustered in September 7, 1862. Left State for Covington, Ky., September 7, and duty there till September 23. Moved to Louisville, Ky., September 23. Attached to 33rd Brigade, 10th Division, Army of the Ohio, September, 1862. 33rd Brigade, 10th Division, 1st Corps, Army of the Ohio, to November, 1862. 2nd Brigade, 5th Division (Centre), 14th Army Corps, Army of the Cumberland, to January, 1863. 2nd Brigade, 5th Division, 14th Army Corps, Army of the Cumberland, to June, 1863. 2nd Brigade, 4th Division, 14th Army Corps, to October, 1863. 2nd Brigade, 3rd Division, 14th Army Corps, to June, 1865. 1st Brigade, 3rd Division, 14th Army Corps, to June, 1865.[1]