| 2nd Pennsylvania Reserve Regiment (31st Pennsylvania Volunteer Infantry) | |
|---|---|
 Photograph of the camp life of the 31st Pennsylvania Infantry 1862 | |
| Active | 1861 to June 16, 1864 |
| Country | United States |
| Allegiance | Union |
| Branch | Infantry |
| Engagements | Seven Days Battles Battle of Mechanicsville Battle of Gaines's Mill Battle of Savage's Station Battle of Glendale Battle of Malvern Hill Second Battle of Bull Run Battle of South Mountain Battle of Antietam Battle of Fredericksburg Battle of Gettysburg Bristoe Campaign Mine Run Campaign Battle of the Wilderness Battle of Spotsylvania Court House Battle of North Anna Battle of Cold Harbor |
| Pennsylvania U.S. Volunteer Infantry Regiments 1861–1865 | ||||
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The 2nd Pennsylvania Reserve Regiment also known as the 31st Pennsylvania Volunteer Infantry was an infantry regiment that served in the Union Army as part of the Pennsylvania Reserves infantry division during the American Civil War.