97th Illinois Infantry Regiment

97th Regiment Illinois Volunteer Infantry
Illinois flag
Active	September 16, 1862, to July 29, 1865
Country	United States
Allegiance	Union
Branch	Infantry
Engagements	American Civil War Battle of Fort Hindman Battle of Port Gibson Battle of Jackson Battle of Champion Hill Battle of Big Black River Siege of Vicksburg Battle of Fort Blakeley

The 97th Regiment Illinois Volunteer Infantry was an infantry regiment that served in the Union Army during the American Civil War. It was instrumental in the Federal campaign to reclaim the Mississippi River for the Union, participating in the siege of Vicksburg and battles leading up to it in Mississippi. Moving down the river after the siege, it participated in efforts to wrest control of the bayou area, then retake Mobile Bay, culminating in the bloody Battle of Fort Blakeley hours after Lee's surrender at Appomattox.