| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Oano | city | Provincia de Niassa | Mozambique | -14.7944444 | 36.8525 | 1702 | 3875 |
| Olivenca | city | Provincia de Niassa | Mozambique | -11.7572222 | 35.2244444 | 2224 | 1363 |
| Olivença | city | Provincia de Niassa | Mozambique | -11.7572222 | 35.2244444 | 2224 | 1363 |
| Omar | city | Provincia de Niassa | Mozambique | -12.0380556 | 36.1405556 | 2024 | 212 |
| Osseman | city | Provincia de Niassa | Mozambique | -13.8575 | 35.3944444 | 3805 | 1923 |
| Ossemani | city | Provincia de Niassa | Mozambique | -13.8575 | 35.3944444 | 3805 | 1923 |
| Ouali | city | Provincia de Niassa | Mozambique | -12.8966667 | 35.0344444 | 4055 | 1077 |
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