| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Ogneva | city | Tyva | Russia | 51.15 | 93.87 | 4189 | 298 |
| Okchary | city | Tyva | Russia | 51.40 | 96.57 | 5029 | 0 |
| Oktsjary | city | Tyva | Russia | 51.40 | 96.57 | 5029 | 0 |
| Oktyabr'skiy | city | Tyva | Russia | 53.15 | 94.65 | 3549 | 0 |
| Oktyabr’skiy | city | Tyva | Russia | 53.15 | 94.65 | 3549 | 0 |
| Ongacha | city | Tyva | Russia | 51.18 | 93.68 | 5029 | 298 |
| Ongacha | city | Tyva | Russia | 51.37 | 94.77 | 2509 | 0 |
| Ongatsja | city | Tyva | Russia | 51.18 | 93.68 | 5029 | 298 |
| Orta-Adyr | city | Tyva | Russia | 50.45 | 95.40 | 5869 | 0 |
| Oruktug-Sair-Aksy | city | Tyva | Russia | 51.27 | 90.35 | 3677 | 447 |
| Ovtsetovarnaya Ferma | city | Tyva | Russia | 50.09 | 95.50 | 4327 | 0 |
| Ovtsetovarnaya Ferma Dagandy-Ovyur | city | Tyva | Russia | 50.09 | 95.50 | 4327 | 0 |
| Ovtsetovarnaya Ferma Sovkhoza Put' k Kommunizmu | city | Tyva | Russia | 50.09 | 95.50 | 4327 | 0 |
| Ovtsetovarnaya Ferma Sovkhoza Put’ k Kommunizmu | city | Tyva | Russia | 50.09 | 95.50 | 4327 | 0 |
| Oyna | city | Tyva | Russia | 51.97 | 96.37 | 5055 | 0 |