3rd Vermont Infantry Regiment

3rd Vermont Infantry Regiment
Flag of Vermont, 1837–1923
Active	July 16, 1861 to July 11, 1865
Disbanded	July 11, 1865
Allegiance	United States Union
Branch	United States Army Union Army
Type	Infantry
Size	1,748
Engagements	Battle of Fredericksburg Battle of Swift Creek Battle of Drewry's Bluff Bermuda Hundred Campaign Battle of Cold Harbor Siege of Petersburg Second Battle of Petersburg Battle of the Crater (reserve) Battle of Chaffin's Farm Battle of Fair Oaks & Darbytown Road
Commanders
Colonel	John W. Phelps
Colonel	William Farrar Smith
Lieutenant Colonel	Wheelock G. Veazey
Insignia
2nd Brigade (Vermont Brigade), 2nd Division, VI Corps (Union Army), Army of the Potomac/Army of the Shenandoah (Union)

The 3rd Vermont Infantry Regiment was a three-years infantry regiment in the Union Army during the American Civil War. It served in the eastern theater, predominantly in the VI Corps, Army of the Potomac, from July 1861 to July 1865. It was a member of the Vermont Brigade.