| 11th Pennsylvania Infantry Regiment | |
|---|---|
| Active | April 26, 1861 - July 1, 1865 |
| Country |  United States |
| Allegiance | Union |
| Branch | United States Army Union Army |
| Type | Infantry |
| Part of | Army of the Potomac |
| Nickname(s) | "The Bloody Eleventh" |
| Mascot(s) | Sallie (dog) |
| Engagements | Battle of Hoke's Run Battle of Bunker Hill (1861) Battle of Cedar Mountain Battle of Thoroughfare Gap Second Battle of Bull Run Battle of Antietam Battle of Fredericksburg Battle of Chancellorsville Battle of Gettysburg Battle of the Wilderness Battle of Spotsylvania Court House Battle of North Anna Battle of Cold Harbor Battle of Hatcher's Run Siege of Petersburg Battle of Five Forks Appomattox Campaign |
| Commanders | |
| Notable commanders | Richard Coulter |
The 11th Pennsylvania Infantry Regiment was a Union army regiment that participated in the American Civil War. It had the distinction of being the oldest unit in continuous service from Pennsylvania.