| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Orencik | city | Sakarya Ili | Turkey | 40.5936111 | 30.3416667 | 1630 | 19404 |
| Ormancilar | city | Sakarya Ili | Turkey | 40.3611111 | 30.4391667 | 3038 | 8151 |
| Ormancılar | city | Sakarya Ili | Turkey | 40.3611111 | 30.4391667 | 3038 | 8151 |
| Ormansevkiye | city | Sakarya Ili | Turkey | 40.7666667 | 30.6 | 131 | 19353 |
| Ormanşevkiye | city | Sakarya Ili | Turkey | 40.7666667 | 30.6 | 131 | 19353 |
| Ortakoy | city | Sakarya Ili | Turkey | 40.7333333 | 30.6666667 | 154 | 19367 |
| Ortakoy | city | Sakarya Ili | Turkey | 40.9811111 | 30.9544444 | 738 | 9561 |
| Ortaköy | city | Sakarya Ili | Turkey | 40.7333333 | 30.6666667 | 154 | 19367 |
| Ortaköy | city | Sakarya Ili | Turkey | 40.9811111 | 30.9544444 | 738 | 9561 |
| Osmanbey | city | Sakarya Ili | Turkey | 40.75 | 30.6166667 | 141 | 19367 |
| Osmansevkiye | city | Sakarya Ili | Turkey | 40.7666667 | 30.6 | 131 | 19353 |
| Osmanşevkiye | city | Sakarya Ili | Turkey | 40.7666667 | 30.6 | 131 | 19353 |
| Ozbek | city | Sakarya Ili | Turkey | 40.4666667 | 30.1333333 | 229 | 19440 |
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