31st Maine Infantry Regiment

31st Regiment Maine Volunteer Infantry
31st Regiment Maine Volunteer Infantry
Active	April 17, 1864 - July 15, 1865
Country	United States
Allegiance	Union (American Civil War)
Branch	Infantry
Size	1,595
Engagements	Battle of the Wilderness; Battle of Spotsylvania; Battle of Cold Harbor; Siege of Petersburg; Battle of the Crater;

The 31st Maine Infantry Regiment (1864–1865) was an infantry regiment of the Union army during the American Civil War (1861–1865). Formed as a volunteer unit in 1864 to supplement the regular army of the North, the regiment engaged in multiple battles against the Confederate army and suffered heavy casualties. Following the Grand Review of the Armies in 1865, the unit was mustered out of service.