| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
| Obektas | city | Corum Ili | Turkey | 41.05 | 35 | 3375 | 7954 |
| Obektas Koy | city | Corum Ili | Turkey | 41.05 | 35 | 3375 | 7954 |
| Obektas Koyu | city | Corum Ili | Turkey | 41.05 | 35 | 3375 | 7954 |
| Oglakozu | city | Corum Ili | Turkey | 40.2333333 | 34.4666667 | 3625 | 5545 |
| Oguzkoy | city | Corum Ili | Turkey | 41.1 | 34.25 | 2641 | 4623 |
| Oksuzler | city | Corum Ili | Turkey | 41.1333333 | 34.35 | 3530 | 5264 |
| Okuzahmet | city | Corum Ili | Turkey | 41.2833333 | 34.4666667 | 5180 | 5073 |
| Okuzkoy | city | Corum Ili | Turkey | 41.1 | 34.25 | 2641 | 4623 |
| Omerbey | city | Corum Ili | Turkey | 40.5666667 | 34.9166667 | 2575 | 5517 |
| Orencik | city | Corum Ili | Turkey | 41.1333333 | 34.5833333 | 1788 | 5468 |
| Ortakoy | city | Corum Ili | Turkey | 40.2833333 | 35.2666667 | 2276 | 5501 |
| Ortaköy | city | Corum Ili | Turkey | 40.2833333 | 35.2666667 | 2276 | 5501 |
| Orucpinar | city | Corum Ili | Turkey | 40.3 | 35.2 | 3077 | 5538 |
| Orucpinarkoy | city | Corum Ili | Turkey | 40.3 | 35.2 | 3077 | 5538 |
| Orukaya | city | Corum Ili | Turkey | 40.1166667 | 34.9333333 | 3175 | 5526 |
| Oruçpınar | city | Corum Ili | Turkey | 40.3 | 35.2 | 3077 | 5538 |
| Oruçpınarköy | city | Corum Ili | Turkey | 40.3 | 35.2 | 3077 | 5538 |
| Osmancik | city | Corum Ili | Turkey | 40.9713889 | 34.7980556 | 1397 | 5482 |
| Osmancık | city | Corum Ili | Turkey | 40.9713889 | 34.7980556 | 1397 | 5482 |
| Ovacik | city | Corum Ili | Turkey | 40.7833333 | 34.0833333 | 4265 | 4502 |
| Ovacık | city | Corum Ili | Turkey | 40.7833333 | 34.0833333 | 4265 | 4502 |
| Oyaca | city | Corum Ili | Turkey | 40.35 | 34.3666667 | 3408 | 5534 |
| Oğlaközü | city | Corum Ili | Turkey | 40.2333333 | 34.4666667 | 3625 | 5545 |
| Oğuzköy | city | Corum Ili | Turkey | 41.1 | 34.25 | 2641 | 4623 |
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