| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Oncocua | city | Cunene | Angola | -16.65 | 13.43 | 3349 | 447 |
| Oncomeni | city | Mozambique | -14.33 | 40.73 | 0 | 4946 | |
| Onconashari | city | Ucayali | Peru | -11.11 | -73.41 | 1863 | 4 |
| Oncondo | city | Huila | Angola | -16.05 | 14.12 | 4189 | 0 |
| Oncourt | city | Lorraine | France | 48.25 | 6.38 | 1207 | 14751 |