| Case Name ▲ | Citation | Year | Distance from slave case(s) | Law Type | Jurisdiction |
|---|---|---|---|---|---|
| Oglesby v. Hall | 30 Ga. 386 | 1860 | 0 | Supreme Court of Georgia | |
| Oglesby v. Howard | 43 Ala. 144 | 1869 | 0 | Alabama | |
| Oglesby v. Oglesby | 30 Ga. 348 | 1860 | 0 | Supreme Court of Georgia | |
| Oglesby v. Stodghill | 23 Ga. 590 | 1857 | 0 | Supreme Court of Georgia | |
| Ogle v. Tayloe | 49 Md. 158 | 1878 | 0 | Maryland | |
| Oldham v. Croghan | 3 Mart. (n.s.) 517 | 1825 | 0 | Louisiana | |
| Oldham v. Oldham | 58 N.C. 89 | 1859 | 0 | North Carolina | |
| Olds v. Powell | 10 Ala. 393 | 1846 | 0 | Alabama | |
| Oliver v. Kauffman | 18 F. Cas. 657 | 1850 | 0 | Civil | Circuit Court, E.D. PA. |
| Oliver v. Oliver | 6 Rob. 36 | 1843 | 0 | Louisiana | |
| Oliver v. Persons | 30 Ga. 391 | 1860 | 0 | Supreme Court of Georgia | |
| Oliver v. State | 39 Miss. 526 | 1860 | 0 | Mississippi | |
| Oliver v. Stone | 24 Ga. 63 | 1858 | 0 | Supreme Court of Georgia | |
| Olive v. Walton | 33 Miss. 103 | 1857 | 0 | Mississippi | |
| Olivier v. Blancq | 2 La. Ann. 517 | 1847 | 0 | Louisiana | |
| Olivier v. Cannon | 18 La. 474 | 1841 | 0 | Louisiana | |
| Omey v. State | 23 Ark. 281 | 1861 | 0 | Arkansas | |
| O'Neale v. Willis | 2 D.C. 108 | 1814 | 0 | United States | |
| O'Neal v. Baker | 47 N.C. 168 | 1855 | 0 | North Carolina | |
| O'Neal v. Oates | 8 La. Ann. 78 | 1853 | 0 | Louisiana |