The 101st Regiment, Indiana Volunteer Infantry was an infantry regiment that served in the Union Army during the American Civil War.

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, 3rd Division, 14th Army Corps, to June, 1865.

This article about a specific military unit of the American Civil War is a stub.