| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
| Ouando | city | Region de la Cuvette | Congo | -0.4869444 | 15.9080556 | 1069 | 420 |
| Ouandotanda | city | Region de la Cuvette | Congo | -0.7372222 | 15.8205556 | 1246 | 420 |
| Oudji | city | Region de la Cuvette | Congo | -0.9841667 | 14.7313889 | 1863 | 397 |
| Oudzima | city | Region de la Cuvette | Congo | -0.1377778 | 16.0419444 | 1099 | 345 |
| Ouenze | city | Region de la Cuvette | Congo | 0.0194444 | 15.6111111 | 1079 | 336 |
| Ouenzé | city | Region de la Cuvette | Congo | 0.0194444 | 15.6111111 | 1079 | 336 |
| Oundjadoumou | city | Region de la Cuvette | Congo | 0.0538889 | 14.8891667 | 1397 | 144 |
| Ounza | city | Region de la Cuvette | Congo | -0.0177778 | 15.6875 | 1072 | 336 |
| Ououa | city | Region de la Cuvette | Congo | -1.0761111 | 14.8941667 | 1774 | 381 |
| Ourombi | city | Region de la Cuvette | Congo | -0.1844444 | 17.1075 | 1122 | 170 |
| Ouroum | city | Region de la Cuvette | Congo | -0.1844444 | 17.1075 | 1122 | 170 |
| Ourumbi | city | Region de la Cuvette | Congo | -0.1844444 | 17.1075 | 1122 | 170 |
| Oussoumba-Issongue | city | Region de la Cuvette | Congo | 0.1030556 | 15.5658333 | 1122 | 336 |
| Oussoumba-Issongué | city | Region de la Cuvette | Congo | 0.1030556 | 15.5658333 | 1122 | 336 |
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