| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Oskey | city | Prefecture du Lac | Chad | 13.3166667 | 15.6833333 | 980 | 364 |
| Osoro | city | Prefecture du Batha | Chad | 13.0833333 | 17.45 | 879 | 700 |
| Ossouni | city | Prefecture du Borkou-Ennedi-Tibesti | Chad | 21.2833333 | 17.15 | 3772 | 28 |
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