Artillery Units
- 1st Battalion Light Artillery
- 1st Regiment Heavy Artillery, African Descent (Becomes 3rd U.S. Colored Heavy Artillery)
- 2nd Regiment Heavy Artillery, African Descent (Becomes 4th U.S. Colored Heavy Artillery)
- Battery A Light Artillery
- Battery B Light Artillery
- Battery C Light Artillery
- Battery D Light Artillery
- Battery E Light Artillery
- Battery F Light Artillery
- Battery G Light Artillery
- Battery K Light Artillery
- Memphis Light Battery, African Descent
- 1st Regiment Heavy Artillery, African Descent (Becomes 3rd U.S. Colored Heavy Artillery)
Cavalry Units
- 1st Regiment Cavalry
- 1st Middle Tennessee Cavalry (See 5th Regiment Cavalry)
- 1st West Tennessee Cavalry (See 6th Regiment Cavalry)
- 2nd Regiment Cavalry
- 2nd West Tennessee Cavalry (See 7th Regiment Cavalry)
- 3rd Regiment Cavalry
- 4th Regiment Cavalry
- 5th Regiment Cavalry (See Middle Tennessee Cavalry)
- 5th Regiment East Tennessee Cavalry
- 6th Regiment Cavalry (See 1st Middle Tennessee Cavalry)
- 7th Regiment Cavalry (See 2nd West Tennessee Cavalry)
- 8th Regiment Cavalry (See 5th East Tennessee Cavalry)
- 9th Regiment Cavalry
- 10th Regiment Cavalry
- 11th Regiment Cavalry
- 12th Regiment Cavalry
- 13th Regiment Cavalry
- 14th Regiment Cavalry
- Bradford's Battalion Cavalry
- 1st Tennessee and Alabama Vedette Cavalry
- 1st Middle Tennessee Cavalry (See 5th Regiment Cavalry)
Infantry Units
- 1st Regiment Infantry
- 2nd Regiment Infantry
- 3rd Regiment Infantry
- 4th Regiment Infantry
- 5th Regiment Infantry
- 6th Regiment Infantry
- 7th Regiment Infantry
- 8th Regiment Infantry
- 9th Regiment Infantry (See 6th Regiment Cavalry)
- 10th Regiment Infantry (See 1st Middle Tennessee Infantry)
- 1st Regiment Mounted Infantry
- 2nd Regiment Mounted Infantry
- 3rd Regiment Mounted Infantry
- 4th Regiment Mounted Infantry
- 5th Regiment Mounted Infantry
- 6th Regiment Mounted Infantry
- 7th Regiment Mounted Infantry
- 8th Regiment Mounted Infantry
- 1st Regiment Infantry, African Descent
- 2nd Regiment Infantry, African Descent
- 1st Regiment Enrolled Militia Infantry
- 2nd Regiment Enrolled Militia Infantry
- 3rd Regiment Enrolled Militia Infantry
- 4th Regiment Enrolled Militia Infantry
- Nashville Union Guards
- Miscellaneous (Home Guard, Militia or National Guard) Companies
- 2nd Regiment Infantry
Source: Tennesseans In The Civil War Part I, Civil War Centennial Commission, 1964; A Compendium of the War of the Rebellion Frederick H. Dyer, 1908.