| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Obolo | city | Mandoul | Chad | 8.63 | 17.32 | 1223 | 2235 |
| Obolo | city | Mandoul | Chad | 8.75 | 17.32 | 1200 | 2235 |
| Omteyon | city | Mandoul | Chad | 8.30 | 17.73 | 1190 | 2235 |
| Ongtanian | city | Mandoul | Chad | 8.30 | 17.73 | 1190 | 2235 |
| Ouardamgué | city | Mandoul | Chad | 8.57 | 17.67 | 1243 | 2235 |
| Ouarraï | city | Mandoul | Chad | 8.75 | 17.55 | 1177 | 2235 |
| Oumour | city | Mandoul | Chad | 9.36 | 17.34 | 1669 | 2148 |