| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Одулемма | city | Harjumaa | Estonia | 59.14 | 24.33 | 232 | 822 |
| Ору | city | Harjumaa | Estonia | 59.19 | 24.98 | 229 | 1559 |
| Охту | city | Harjumaa | Estonia | 59.27 | 24.37 | 131 | 8860 |
| Ояма | city | Harjumaa | Estonia | 59.19 | 24.05 | 141 | 306 |
| Оясоо | city | Harjumaa | Estonia | 59.12 | 25.18 | 232 | 694 |