| 15th Regiment Massachusetts Volunteer Infantry | |
|---|---|
 | |
| Active | July 12, 1861 – July 26, 1864 |
| Country |  United States of America |
| Allegiance | Union |
| Branch | United States Army |
| Type | Infantry |
| Size | 1,701 |
| Part of | 1st Brigade, 2nd Division (Gibbon's), II Corps, Army of the Potomac |
| Engagements | Battle of Ball's Bluff Battle of Malvern Hill Battle of Antietam Battle of Fredericksburg Mud March Battle of Gettysburg Battle of the Wilderness Battle of Spotsylvania Court House Battle of Cold Harbor Siege of Petersburg |
| Commanders | |
| Notable commanders | Col. Charles Devens Lt. Col. John W. Kimball |
| Insignia | |
| II Corps badge (2nd Division) |  |
| Massachusetts U.S. Volunteer Infantry Regiments 1861-1865 | ||||
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The 15th Massachusetts Volunteer Infantry Regiment was an infantry regiment that served from the State of Massachusetts during the American Civil War from 1861 to 1864. A part of the II Corps of the Army of the Potomac, the regiment was engaged in many battles from Ball's Bluff to Petersburg, and suffered the tenth highest fatality rate amongst Federal regiments. The regiment was composed almost entirely of men from Worcester County, and was mustered in on July 12, 1861.