| Confederate Units at Port Hudson | |
| (Source: Port Hudson State Commemorative Area) | |
| Note: I believe this is meant to be an all-inclusive list of the units which served at Port Hudson, covering the entire period the post was operating. Many of the units below had been transferred elsewhere before the beginning of the siege. In some cases, only detachments from the units were present, not the entire unit. | |
| Alabama | Mississippi (cont.) |
| 1st Alabama Infantry Regiment | Garland's Mississippi Cavalry Company |
| 6th Alabama Infantry Regiment | Hughes' Mississippi Cavalry Company |
| 16th Alabama Infantry Regiment | Norman's Mississippi Cavalry Company |
| 27th Alabama Infantry Regiment | Rhode's Mississippi Cavalry Company |
| 35th Alabama Infantry Regiment | Stockdale's Mississippi Cavalry Company |
| 49th Alabama Infantry Regiment | Terrell's Mississippi Cavalry Company |
| Welbourne's Mississippi Cavalry Company | |
| Arkansas | Battery B, 1st Mississippi Artillery Regiment |
| 8th Arkansas Infantry Battalion | Battery F, 1st Mississippi Artillery Regiment |
| 9th Arkansas Infantry Regiment | Battery K, 1st Mississippi Artillery Regiment |
| 10th Arkansas Infantry Regiment | Brookhaven Mississippi Battery |
| 11th Arkansas Infantry Regiment | English's Mississippi Battery |
| 12th Arkansas Infantry Regiment | Hudson's Mississippi Battery |
| 14th Arkansas Infantry Regiment | Seven Stars Mississippi Battery |
| 15th Arkansas Infantry Regiment | |
| 16th Arkansas Infantry Regiment | Missouri |
| 17th Arkansas Infantry Regiment | 1st Missouri Battery |
| 18th Arkansas Infantry Regiment | |
| 23rd Arkansas Infantry Regiment | Tennessee |
| Cochran's Arkansas Cavalry Battalion | 1st Tennessee Infantry Regiment |
| 3rd Tennessee Infantry Regiment | |
| Kentucky | 10th Tennessee Infantry Regiment |
| 3rd Kentucky Infantry Regiment | 30th Tennessee Infantry Regiment |
| 7th Kentucky Infantry Regiment | 41st Tennessee Infantry Regiment |
| 42nd Tennessee Infantry Regiment | |
| Louisiana | 46th Tennessee Infantry Regiment |
| 4th Louisiana Infantry Regiment | 48th Tennessee Infantry Regiment |
| 9th Louisiana Infantry Regiment | 49th Tennessee Infantry Regiment |
| 12th Louisiana Infantry Regiment | 50th Tennessee Infantry Regiment |
| 30th Louisiana Infantry Regiment | 51st Tennessee Infantry Regiment |
| Miles' Louisiana Legion | 53rd Tennessee Infantry Regiment |
| 9th Louisiana Partisan Rangers | 55th Tennessee Infantry Regiment |
| Bryan's Louisiana Cavalry Company | 9th Tennessee Cavalry Battalion |
| Cage's Louisiana Cavalry Company | Battery B, 1st Tennessee Artillery Battalion |
| Daigre's Louisiana Cavalry Company | Battery G, lst Tennessee Artillery Battalion |
| Stuart's Louisiana Cavalry Company | Maury's Battery, 1st Tennessee Artillery Battalion |
| 12th Louisiana Heavy Artillery Battalion | |
| Battery A, Pointe Coupee Louisiana Artillery | Texas |
| Battery C, Pointe Coupee Louisiana Artillery | 1st Texas Sharpshooter Battalion |
| Boone's Louisiana Battery | 7th Texas Infantry Regiment |
| Fenner's Louisiana Battery | |
| Watson's Louisiana Battery | Misc. |
| 1st Confederate Infantry Battalion | |
| Mississippi | |
| 1st Mississippi Infantry Regiment | |
| 6th Mississippi Infantry Regiment | |
| 15th Mississippi Infantry Regiment | |
| 39th Mississippi Infantry Regiment | |
| Claiborne's Mississippi Infantry Regiment | |
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