List of Union units from Mississippi in the American Civil War
This is a list of units from Mississippi that served in the Union during the American Civil War. Only a single unit of white Union troops was raised within the state, along with several regiments of African-American volunteers, eventually becoming part of the United States Colored Troops. The list of Confederate Mississippi units is shown separately.
Units
- 1st Battalion, Mississippi Mounted Rifles (Union)
- 1st Mississippi Cavalry Regiment – redesignated 3rd U.S. Colored Cavalry Regiment
- 1st Mississippi Heavy Artillery Regiment – redesignated 5th U.S. Colored Heavy Artillery Regiment
- 2nd Mississippi Heavy Artillery Regiment – redesignated 6th U.S. Colored Heavy Artillery Regiment
- 1st Mississippi Infantry Regiment – redesignated 51st U.S. Colored Infantry Regiment
- 2nd Mississippi Infantry Regiment – redesignated 52nd U.S. Colored Infantry Regiment
- 3rd Mississippi Infantry Regiment – redesignated 53rd U.S. Colored Infantry Regiment
- 4th Mississippi Infantry Regiment – redesignated 66th United States Colored Infantry Regiment
- 5th Mississippi Infantry Regiment – organization not completed
- 6th Mississippi Infantry Regiment – redesignated 58th U.S. Colored Infantry Regiment