| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Ocakli | city | Tunceli Ili | Turkey | 39.4 | 40.05 | 6085 | 2307 |
| Ocaklı | city | Tunceli Ili | Turkey | 39.4 | 40.05 | 6085 | 2307 |
| Ogullar | city | Tunceli Ili | Turkey | 39.335 | 39.7938889 | 5475 | 2128 |
| Okrukbasi | city | Tunceli Ili | Turkey | 38.9333333 | 39.75 | 4133 | 2136 |
| Okrukbaşı | city | Tunceli Ili | Turkey | 38.9333333 | 39.75 | 4133 | 2136 |
| Onbasilar | city | Tunceli Ili | Turkey | 38.9833333 | 39.55 | 3244 | 2133 |
| Onbaşılar | city | Tunceli Ili | Turkey | 38.9833333 | 39.55 | 3244 | 2133 |
| Orenci | city | Tunceli Ili | Turkey | 39.0372222 | 39.7433333 | 5360 | 2133 |
| Orenici | city | Tunceli Ili | Turkey | 39.0372222 | 39.7433333 | 5360 | 2133 |
| Orenonu | city | Tunceli Ili | Turkey | 39.1333333 | 39.5833333 | 3956 | 2132 |
| Ormanyolu | city | Tunceli Ili | Turkey | 39.1666667 | 39.05 | 3953 | 2129 |
| Orskoy | city | Tunceli Ili | Turkey | 38.9066667 | 39.7247222 | 3589 | 2016 |
| Ortadurak | city | Tunceli Ili | Turkey | 38.8166667 | 39.6833333 | 4120 | 4406 |
| Ortaharman | city | Tunceli Ili | Turkey | 38.9333333 | 39.8 | 4084 | 2278 |
| Oruc | city | Tunceli Ili | Turkey | 39.0666667 | 39.7833333 | 4245 | 2133 |
| Oruc Mezraasi | city | Tunceli Ili | Turkey | 39.0666667 | 39.7833333 | 4245 | 2133 |
| Oruç | city | Tunceli Ili | Turkey | 39.0666667 | 39.7833333 | 4245 | 2133 |
| Oruç Mezraası | city | Tunceli Ili | Turkey | 39.0666667 | 39.7833333 | 4245 | 2133 |
| Oskih | city | Tunceli Ili | Turkey | 39.0833333 | 38.9833333 | 4858 | 2133 |
| Ovacik | city | Tunceli Ili | Turkey | 39.3602778 | 39.2213889 | 4038 | 2128 |
| Ovacık | city | Tunceli Ili | Turkey | 39.3602778 | 39.2213889 | 4038 | 2128 |
| Ozdek | city | Tunceli Ili | Turkey | 38.95 | 39.8 | 3720 | 2278 |
| Oğullar | city | Tunceli Ili | Turkey | 39.335 | 39.7938889 | 5475 | 2128 |
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