 | This article includes a list of references, related reading, or external links, but its sources remain unclear because it lacks inline citations. (May 2022) |
| 18th Massachusetts Infantry Regiment | |
|---|---|
 Regimental colors of 18th Massachusetts Volunteers | |
| Active | August 1861 – September 1864 |
| Country |  United States of America |
| Allegiance | Union |
| Branch | United States Army |
| Type | Infantry |
| Part of | In 1863: 1st Brigade (Tilton's), 1st Division (Barnes's), V Corps, Army of the Potomac |
| Engagements | Siege of Yorktown Battle of Hanover Court House Second Battle of Bull Run Battle of Antietam Battle of Fredericksburg Battle of Gettysburg Battle of the Wilderness Battle of Spotsylvania Court House Battle of Cold Harbor Siege of Petersburg |
| Commanders | |
| Notable commanders | Col. James Barnes[1] |
| Insignia | |
| 1st Division, III Corps |  |
| 1st Division, V Corps |  |
| Massachusetts U.S. Volunteer Infantry Regiments 1861-1865 | ||||
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The 18th Massachusetts Infantry Regiment was a Union regiment that fought in the American Civil War.
- ^ Dyer (1908), p. 1254; Federal Publishing Company (1908), p. 175.