| 94th Regiment Illinois Volunteer Infantry | |
|---|---|
 Illinois flag | |
| Active | August 20, 1862, to July 17, 1865 |
| Country | United States |
| Allegiance | Union |
| Branch | Infantry |
| Engagements | Battle of Prairie Grove Siege of Vicksburg Fort Morgan Operations against Mobile, Alabama |
The 94th Regiment Illinois Volunteer Infantry, nicknamed the "McLean Regiment," was an infantry regiment that served in the Union Army during the American Civil War.