| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
| Ober"-Palen" | city | Jogevamaa | Estonia | 58.6525 | 25.9705556 | 232 | 1268 |
| Oberpahlen | city | Jogevamaa | Estonia | 58.6525 | 25.9705556 | 232 | 1268 |
| Ober”-Palen” | city | Jogevamaa | Estonia | 58.6525 | 25.9705556 | 232 | 1268 |
| Obhonja | city | Ida-Virumaa | Estonia | 59.094444 | 27.4775 | 167 | 4712 |
| Obiniste | city | Vorumaa | Estonia | 57.8102778 | 27.4422222 | 285 | 1503 |
| Obinitsa | city | Vorumaa | Estonia | 57.8102778 | 27.4422222 | 285 | 1503 |
| Obja | city | Laane-Virumaa | Estonia | 59.1777778 | 26.6316667 | 295 | 1666 |
| Oblu | city | Raplamaa | Estonia | 59.0472222 | 25.0947222 | 285 | 2766 |
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