| 11th Regiment Illinois Volunteer Cavalry | |
|---|---|
 Illinois flag | |
| Active | December 20, 1861, to September 30, 1865 |
| Country | United States |
| Allegiance | Union |
| Branch | Cavalry |
| Engagements | Battle of Shiloh Battle of Corinth Battle of Lexington Battle of Egypt Station |
| Illinois U.S. Volunteer Cavalry Regiments 1861-1865 | ||||
|
The 11th Regiment Illinois Volunteer Cavalry was a cavalry regiment that served in the Union Army during the American Civil War. The regiment was raised by orator Robert Green Ingersoll, who became its first colonel, and Basile D. Weeks.