| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| O'Rouck | city | Departement de la Grand'Anse | Haiti | 18.48 | -73.28 | 52 | 0 |
| Obere | city | Departement de la Grand'Anse | Haiti | 18.57 | -74.20 | 846 | 0 |
| Obéissant | city | Departement de la Grand'Anse | Haiti | 18.40 | -73.15 | 1958 | 1242 |
| Olive | city | Departement de la Grand'Anse | Haiti | 18.57 | -73.97 | 606 | 0 |
| Olivier | city | Departement de la Grand'Anse | Haiti | 18.42 | -73.05 | 62 | 20875 |
| Oneflime | city | Departement de la Grand'Anse | Haiti | 18.43 | -74.23 | 2244 | 6731 |
| Orange | city | Departement de la Grand'Anse | Haiti | 18.38 | -73.22 | 1276 | 7350 |
| Ounongo | city | Departement de la Grand'Anse | Haiti | 18.48 | -74.33 | 754 | 0 |
| O’Rouck | city | Departement de la Grand'Anse | Haiti | 18.48 | -73.28 | 52 | 0 |