| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Obolone Mabirou | city | Prefecture du Chari-Baguirmi | Chad | 10.98 | 15.58 | 958 | 1247 |
| Ole Adam Torteri | city | Prefecture du Chari-Baguirmi | Chad | 12.95 | 15.28 | 935 | 894 |
| Ole Hasan | city | Prefecture du Chari-Baguirmi | Chad | 12.92 | 15.28 | 935 | 894 |
| Omo | city | Prefecture du Chari-Baguirmi | Chad | 12.16 | 16.84 | 1003 | 894 |
| Omo | city | Prefecture du Chari-Baguirmi | Chad | 12.20 | 16.82 | 1003 | 894 |
| Omo | city | Prefecture du Chari-Baguirmi | Chad | 12.18 | 16.83 | 1003 | 894 |
| Onoko | city | Prefecture du Chari-Baguirmi | Chad | 10.91 | 15.63 | 958 | 2738 |
| Ouadam Bagirmi | city | Prefecture du Chari-Baguirmi | Chad | 12.84 | 16.32 | 944 | 894 |
| Oual Adam Tortéri | city | Prefecture du Chari-Baguirmi | Chad | 12.95 | 15.28 | 935 | 894 |
| Oual Hassan | city | Prefecture du Chari-Baguirmi | Chad | 12.92 | 15.28 | 935 | 894 |
| Oual Tendjen | city | Prefecture du Chari-Baguirmi | Chad | 12.89 | 15.03 | 915 | 825 |
| Ouandalla | city | Prefecture du Chari-Baguirmi | Chad | 12.99 | 15.72 | 869 | 7075 |
| Ouara | city | Prefecture du Chari-Baguirmi | Chad | 12.43 | 15.85 | 958 | 894 |
| Ouel Tendjen | city | Prefecture du Chari-Baguirmi | Chad | 12.89 | 15.03 | 915 | 825 |
| Ouelmehemet | city | Prefecture du Chari-Baguirmi | Chad | 12.08 | 15.94 | 977 | 894 |
| Ouendou Abdou | city | Prefecture du Chari-Baguirmi | Chad | 10.88 | 15.94 | 1020 | 894 |
| Ouka Atim | city | Prefecture du Chari-Baguirmi | Chad | 12.43 | 15.06 | 944 | 894 |
| Ouka et Tin | city | Prefecture du Chari-Baguirmi | Chad | 12.43 | 15.06 | 944 | 894 |
| Ouled an Béga | city | Prefecture du Chari-Baguirmi | Chad | 12.80 | 15.00 | 915 | 894 |
| Oum Al Louma | city | Prefecture du Chari-Baguirmi | Chad | 12.21 | 15.02 | 954 | 37495 |
| Oum el Louma | city | Prefecture du Chari-Baguirmi | Chad | 12.21 | 15.02 | 954 | 37495 |
| Oumar | city | Prefecture du Chari-Baguirmi | Chad | 12.38 | 15.93 | 961 | 894 |
| Ourongadji | city | Prefecture du Chari-Baguirmi | Chad | 12.16 | 15.14 | 984 | 120194 |
| Ouroula | city | Prefecture du Chari-Baguirmi | Chad | 12.51 | 15.31 | 944 | 894 |
| Ouroulla | city | Prefecture du Chari-Baguirmi | Chad | 12.51 | 15.31 | 944 | 894 |
| Ouénabdou | city | Prefecture du Chari-Baguirmi | Chad | 10.88 | 15.94 | 1020 | 894 |