The 15th Massachusetts Volunteer Infantry Regiment was an infantry regiment that served from the State of Massachusetts during the American Civil War from 1861-1864.
Battles
- Battle of Ball's Bluff (October 21, 1861)
- Battle of Seven Pines (May 31–June 1, 1862)
- Battle of Savage's Station (June 29, 1862)
- Battle of Glendale ( June 30, 1862)
- Second Battle of Bull Run (August 28–30, 1862)
- Battle of Antietam (September 17, 1862)
- Battle of Fredericksburg (December 11–15, 1862)
- Battle of Gettysburg (July 1–3, 1863)
- Battle of the Wilderness (May 5–7, 1864)
- Battle of Spotsylvania Court House (May 8–21, 1864)
- Battle of Cold Harbor (May 31–June 12, 1864)
- Siege of Petersburg (June 9, 1864 – March 25, 1865)