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63rd New York Volunteer Infantry
New York flag
Active November 1861 – June 30, 1865
Country United States
Allegiance Union
Branch Infantry
Equipment .69 M1842 smoothbore "buck and ball"
Engagements American Civil War

The 63rd New York Infantry was a Union Army regiment in the Irish Brigade during the American Civil War. It served in some of the leading campaigns and battles of the Army of the Potomac in the Eastern Theater of operations.