The 62nd Pennsylvania Volunteer Infantry was an infantry regiment that served in the Union Army during the American Civil War.
The 62nd Pennsylvania Infantry was organized at Pittsburgh, Pennsylvania beginning on July 4, 1861 and mustered in on August 31, 1861, as the 33rd Pennsylvania Regiment for a three-year enlistment under the command of Colonel Samuel W. Black.
Its designation was changed to the 62nd Pennsylvania Infantry on November 18, 1861.
The regiment was attached to Morrell's Brigade, Fitz John Porter's Division, Army of the Potomac, to March 1862.
2nd Brigade, 1st Division, III Corps, Army of the Potomac, to May 1862.
Veterans and recruits were transferred to the 155th Pennsylvania Infantry.
Camp near Fort Corcoran, defenses of Washington, D.C., until October 1861, and near Fall's Church, Va., until March 1862.
Movement to Fort Monroe, then to Centreville August 16–28.
Expedition to Richard's and Ellis' Fords, Rappahannock River, December 30–31.
Burnside's second Campaign, "Mud March," January 20–24, 1863.
Mine Run Campaign November 26 – December 2.
The 62d was one of only 14 Union regiments with 17 or more officers who were killed or mortally wounded in battle.