See main article: Louisiana in the American Civil War. This is a list of regiments from the U.S. state of Louisiana that fought in the Union Army during the American Civil War (1861–1865). The list of Louisiana Confederate Civil War units is shown separately.
| Regiment | Corps d'Afrique Regiment | U.S. Colored Troops Regiment | Notes | |
|---|---|---|---|---|
| 1st Corps d'Afrique Regiment Heavy Artillery | 7th United States Colored Regiment Heavy Artillery 10th United States Colored Regiment Heavy Artillery | |||
| 2nd United States Colored Regiment Light Artillery (Battery C) | ||||
| 2nd United States Colored Regiment Light Artillery (Battery D) | ||||
| 2nd United States Colored Regiment Light Artillery (Battery E) | ||||
| Consolidated with 1st Louisiana Cavalry September 1864 | ||||
| 1st Corps d'Afrique Regiment Cavalry | ||||
| 1st Louisiana Regiment Infantry | ||||
| 2nd Louisiana Regiment Infantry | ||||
| 1st Corps d'Afrique Regiment Infantry | 73rd United States Colored Infantry Regiment | |||
| 2nd Corps d'Afrique Regiment Infantry | ||||
| 3rd Corps d'Afrique Regiment Infantry | ||||
| 4th Corps d'Afrique Regiment Infantry | ||||
| Failed to complete organization | ||||
| Mustered out after 60 days | ||||
| 1st Corps d'Afrique Regiment Engineers | ||||
| 2nd Corps d'Afrique Regiment Engineers | ||||
| 3rd Corps d'Afrique Regiment Engineers | ||||
| 4th Corps d'Afrique Regiment Engineers | 98th United States Colored Infantry Regiment | |||
| 5th Corps d'Afrique Regiment Infantry | 77th United States Colored Infantry Regiment | |||
| 6th Corps d'Afrique Regiment Infantry | 78th United States Colored Infantry Regiment | |||
| 7th Corps d'Afrique Regiment Infantry | 79th United States Colored Infantry Regiment | |||
| 8th Corps d'Afrique Regiment Infantry | 80th United States Colored Infantry Regiment | |||
| 9th Corps d'Afrique Regiment Infantry | 81st United States Colored Infantry Regiment | |||
| 10th Corps d'Afrique Regiment Infantry | 82nd United States Colored Infantry Regiment | |||
| 11th Corps d'Afrique Regiment Infantry | ||||
| 12th Corps d'Afrique Regiment Infantry | 84th United States Colored Infantry Regiment | |||
| 13th Corps d'Afrique Regiment Infantry | 85th United States Colored Infantry Regiment | |||
| 14th Corps d'Afrique Regiment Infantry | ||||
| 15th Corps d'Afrique Regiment Infantry 5th Corps d'Afrique Engineers | ||||
| 16th Corps d'Afrique Regiment Infantry | ||||
| 17th Corps d'Afrique Regiment Infantry | ||||
| 18th Corps d'Afrique Regiment Infantry | ||||
| 19th Corps d'Afrique Regiment Infantry | ||||
| 20th Corps d'Afrique Regiment Infantry | ||||
| 22nd Corps d'Afrique Regiment Infantry | ||||
| 25th Corps d'Afrique Regiment Infantry |