| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Ochestan | city | Iran | 33.67 | 50.41 | 6082 | 3423 | |
| Olūsjerd | city | Iran | 34.95 | 50.37 | 3248 | 20091 | |
| Olūsjerd | city | Iran | 34.96 | 50.34 | 3297 | 27476 | |
| Ormak | city | Iran | 34.11 | 51.06 | 5931 | 2595 | |
| Ormakan | city | Iran | 34.70 | 50.49 | 3805 | 894 | |
| Ortagol | city | Iran | 34.73 | 49.72 | 7355 | 2086 | |
| Ostūj | city | Iran | 34.89 | 50.37 | 3208 | 4040 | |
| Owjan | city | Iran | 34.87 | 50.38 | 3149 | 1174 | |
| Owrāz | city | Iran | 34.15 | 50.82 | 7263 | 3144 |