| Case Name ▲ | Citation | Year | Distance from slave case(s) | Law Type | Jurisdiction |
|---|---|---|---|---|---|
| State v. Oats | 32 N.J. Super. 435 | 1954 | 1 | New Jersey | |
| State v. O’Brien | 106 Vt. 97 | 1934 | 1 | Vermont | |
| State v. O'Conner | 13 La. Ann. 486 | 1858 | 0 | Criminal law, selling liquor to an enslaved person | Louisiana |
| State v. Odam | 70 Tenn. 220 | 1879 | 1 | Tennessee | |
| State v. O'Day | 41 Or. 495 | 1902 | 1 | Oregon | |
| State v. Ogden | 39 Or. 195 | 1901 | 1 | Oregon | |
| State v. Ohmer | 34 Mo. App. 115 | 1889 | 1 | Missouri | |
| State v. Old | 271 N.C. 341 | 1967 | 1 | North Carolina | |
| State v. Oleson | 26 Minn. 507 | 1880 | 1 | Minnesota | |
| State v. Oliver | 334 N.C. 513 | 1993 | 1 | North Carolina | |
| State v. O'Neil | 51 Kan. 651 | 1893 | 1 | Kansas | |
| State v. O'Neill | 114 Mo. App. 611 | 1905 | 1 | Missouri | |
| State v. On Gee How | 15 Nev. 184 | 1880 | 1 | Nevada | |
| State v. Orange & N. W. Ry. Co. | 181 S.W. 494 | 1915 | 1 | Texas | |
| State v. Ormond | 18 N.C. 119 | 1834 | 1 | North Carolina | |
| State v. Oscar | 52 N.C. 305 | 1859 | 0 | Sexual assault | North Carolina |
| State v. Oscar | 13 La. Ann. 297 | 1858 | 0 | Capital punishment, preliminary exam, objection to trial | Louisiana |
| State v. O’Shea | 60 Kan. 772 | 1899 | 1 | Kansas | |
| State v. Ostrander | 30 Mo. 13 | 1860 | 1 | Missouri | |
| State v. Ostrander | 18 Iowa 435 | 1865 | 1 | Iowa |