| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Ongatsy | city | Faritanin' i Fianarantsoa | Madagascar | -22.4 | 47.9 | 3 | 14147 |
| Oninarivo | city | Faritanin' i Fianarantsoa | Madagascar | -21.3833333 | 46.05 | 2047 | 293 |
| Onisoa | city | Faritanin' i Fianarantsoa | Madagascar | -21.5 | 46.0166667 | 2732 | 271 |
| Onjatsy | city | Faritanin' i Fianarantsoa | Madagascar | -22.4 | 47.9 | 3 | 14147 |
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