105th Illinois Infantry Regiment
| 105th Illinois Volunteer Infantry Regiment | |
|---|---|
| Active | 1862–1865 |
| Country | United States |
| Allegiance | Union |
| Branch | Union Army |
| Type | Infantry |
| Size | Regiment |
| Facings | Light blue |
| Engagements | American Civil War |
| Commanders | |
| Commanding officer | Colonel Daniel Dustin |
The 105th Illinois Infantry Regiment was an infantry regiment in the Union Army during the American Civil War. The regiment was made up of volunteers, primarily from the Illinois counties of DeKalb and DuPage but other counties were represented as well. The 105th Regiment served from 1862 through the end of the war in 1865.