| Unit Name: | 35th Regiment Illinois Volunteer Infantry |
| Dates: | July 3, 1861, to September 27, 1864 |
| Country: | United States |
| Allegiance: | Union |
| Branch: | Infantry |
| Battles: | Battle of Pea Ridge Battle of Perryville Battle of Stones River Battle of Chickamauga Battle of Missionary Ridge Battle of Resaca Battle of Pickett's Mill Battle of Kennesaw Mountain Siege of Atlanta Battle of Peachtree Creek |
The 35th Regiment Illinois Volunteer Infantry was an infantry regiment that served in the Union Army during the American Civil War.
The 35th Illinois Infantry was organized at Decatur, Illinois and mustered into Federal service on July 3, 1861, for three years service. Its organizer and first colonel was Gustavus A. Smith after whom it was originally called G.A. Smith's Independent Regiment.
The regiment was mustered out on September 27, 1864, at Springfield, Illinois.
The regiment suffered 7 officers and 91 enlisted men who were killed in action or who died of their wounds and 5 officers and 164 enlisted men who died of disease, for a total of 267 fatalities.[1]