| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Oban | city | California | United States | 34.77 | -118.15 | 2509 | |
| Oberg (historical) | city | California | United States | 34.43 | -118.59 | 1102 | |
| Obie | city | California | United States | 41.17 | -121.71 | 4563 | |
| Obregon | city | California | United States | 32.86 | -114.79 | 918 |