| Unit Name: | 210th Pennsylvania Volunteer Infantry |
| Dates: | September 12, 1864 – May 30, 1865 |
| Country: |  United States |
| Allegiance: | Union |
| Branch: | Infantry |
| Battles: | American Civil War |
The 210th Pennsylvania Volunteer Infantry was an infantry regiment that served in the Union Army during the American Civil War.
The 210th Pennsylvania Infantry was organized at Harrisburg, Pennsylvania beginning September 12, 1864 and mustered on September 28, 1864, under the command of Colonel William Sergeant.
The regiment was attached to 3rd Brigade, 2nd Division, V Corps, Army of the Potomac.
The 210th Pennsylvania Infantry mustered out of service on May 30, 1865.
Siege of Petersburg, Va., October 1864 to April 1865. Boydton Plank Road, Hatcher's Run October 27–28, 1864. Warren's Raid on Weldon Railroad December 7–12. Dabney's Mills, Hatcher's Run, February 5–7, 1865. Appomattox Campaign March 28-April 9. Lewis's Farm near Gravelly Run March 29. White Oak Road March 30–31. Five Forks April 1. Appomattox Court House April 9. Surrender of Lee and his army. Marched to Washington, D.C., May 1–12. Grand Review of the Armies May 23.
The regiment lost a total of 85 men during service; 3 officers and 37 enlisted men killed or mortally wounded, 1 officer and 44 enlisted men died of disease.