| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
| Odoulon | city | Prefecture de Guekedou | Guinea | 8.4516667 | -10.0533333 | 1656 | 2121 |
| Oouay | city | Prefecture de Guekedou | Guinea | 8.5 | -9.9833333 | 1998 | 4224 |
| Ouabingo | city | Prefecture de Guekedou | Guinea | 8.5833333 | -10.55 | 1017 | 11834 |
| Ouabingo | city | Prefecture de Guekedou | Guinea | 8.5141667 | -10.0202778 | 1991 | 5832 |
| Ouakouman | city | Prefecture de Guekedou | Guinea | 8.4730556 | -10.0172222 | 1860 | 4640 |
| Ouamandou | city | Prefecture de Guekedou | Guinea | 8.4852778 | -10.4708333 | 1007 | 6238 |
| Ouamou | city | Prefecture de Guekedou | Guinea | 8.7902778 | -10.1463889 | 1499 | 6216 |
| Ouassaya | city | Prefecture de Guekedou | Guinea | 8.8333333 | -10.5166667 | 1496 | 8309 |
| Oue | city | Prefecture de Guekedou | Guinea | 9 | -10.4666667 | 1466 | 6201 |
| Ouende | city | Prefecture de Guekedou | Guinea | 8.9 | -10.1333333 | 1998 | 3688 |
| Ouendé | city | Prefecture de Guekedou | Guinea | 8.9 | -10.1333333 | 1998 | 3688 |
| Ouere | city | Prefecture de Guekedou | Guinea | 9 | -10.4666667 | 1466 | 6201 |
| Oueye | city | Prefecture de Guekedou | Guinea | 8.5 | -9.9833333 | 1998 | 4224 |
| Oueye | city | Prefecture de Guekedou | Guinea | 8.5713889 | -9.9641667 | 1978 | 6220 |
| Oulade | city | Prefecture de Guekedou | Guinea | 8.5816667 | -10.3294444 | 1158 | 6221 |
| Ouladé | city | Prefecture de Guekedou | Guinea | 8.5816667 | -10.3294444 | 1158 | 6221 |
| Oulako | city | Prefecture de Guekedou | Guinea | 8.9386111 | -10.4091667 | 1886 | 5632 |
| Oulako Doma | city | Prefecture de Guekedou | Guinea | 8.8666667 | -10.4 | 1975 | 6216 |
| Ouokouama | city | Prefecture de Guekedou | Guinea | 8.5333333 | -10.0666667 | 1551 | 4837 |
| Ouondedou | city | Prefecture de Guekedou | Guinea | 9.05 | -10.4666667 | 2103 | 4966 |
| Ouondodou | city | Prefecture de Guekedou | Guinea | 9.05 | -10.4666667 | 2103 | 4966 |
| Ouondédou | city | Prefecture de Guekedou | Guinea | 9.05 | -10.4666667 | 2103 | 4966 |
| Oué | city | Prefecture de Guekedou | Guinea | 9 | -10.4666667 | 1466 | 6201 |
| Ouéré | city | Prefecture de Guekedou | Guinea | 9 | -10.4666667 | 1466 | 6201 |
| Owet | city | Prefecture de Guekedou | Guinea | 8.5 | -9.9833333 | 1998 | 4224 |
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