1st Michigan Volunteer Infantry Regiment (3 Years)

1st Regiment Michigan Volunteer Infantry
Michigan state flag
Active	September 16, 1861, to July 19, 1865
Country	United States
Allegiance	Union
Branch	Infantry
Engagements	Peninsular Campaign Second Battle of Bull Run Battle of Antietam Battle of Fredericksburg Battle of Chancellorsville Battle of Gettysburg Battle of the Wilderness Battle of Cold Harbor Siege of Petersburg Battle of Five Forks

The 1st Regiment Michigan Volunteer Infantry was an infantry regiment that served in the Union Army during the American Civil War.

The 1st Michigan Infantry was organized at Detroit, Michigan and mustered into Federal service for a three-year enlistment on September 16, 1861. This regiment retained the number of the original 1st Michigan raised for a three-month enlistment.

The regiment was mustered out on July 19, 1865.

The regiment suffered 15 officers and 172 enlisted men who were killed in action or mortally wounded and 1 officer and 149 enlisted men who died of disease, for a total of 337 fatalities.