21st Michigan Volunteer Infantry Regiment

21st Regiment Michigan Volunteer Infantry

Active	September 9, 1862, to June 8, 1865
Country	United States
Allegiance	Union
Branch	Infantry
Engagements	Battle of Perryville Battle of Stone's River Battle of Chickamauga Battle of Chattanooga March to the Sea Siege of Savannah Battle of Bentonville Battle of Averasborough

The 21st Regiment Michigan Volunteer Infantry was an infantry regiment that served in the Union Army during the American Civil War.

The 21st Michigan Infantry was mustered into Federal service at Ionia, Michigan and Grand Rapids, Michigan, on September 9, 1862. The regiment recruited its members starting on July 15, 1862, from the 4th Congressional District which included the Michigan counties of Barry, Ionia, Montcalm, Kent, Ottawa, Muskegon, Oceana, Newaygo, Mecosta, Mason, Manistee, Grand Traverse, Leelanau, Manitou, Osceola, Emmet, Mackinac, Delta, and Cheboygan. The 21st Michigan Infantry rendezvous was at Ionia.