| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Oano | city | Niassa | Mozambique | -14.79 | 36.85 | 1702 | 1895 |
| Olivença | city | Niassa | Mozambique | -11.76 | 35.22 | 2509 | 596 |
| Omar | city | Niassa | Mozambique | -12.04 | 36.14 | 2024 | 298 |
| Osseman | city | Niassa | Mozambique | -13.86 | 35.39 | 4189 | 2533 |
| Ossemani | city | Niassa | Mozambique | -13.86 | 35.39 | 4189 | 2533 |
| Ouali | city | Niassa | Mozambique | -12.90 | 35.03 | 4189 | 2266 |