| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Omalo | city | Nomos Kilkis | Greece | 40.9080556 | 22.3916667 | 1309 | 3711 |
| Omalon | city | Nomos Kilkis | Greece | 40.9080556 | 22.3916667 | 1309 | 3711 |
| Omaló | city | Nomos Kilkis | Greece | 40.9080556 | 22.3916667 | 1309 | 3711 |
| Omalón | city | Nomos Kilkis | Greece | 40.9080556 | 22.3916667 | 1309 | 3711 |
| Orevitsa | city | Nomos Kilkis | Greece | 41.0383333 | 22.5727778 | 492 | 3420 |
| Orizartsi | city | Nomos Kilkis | Greece | 40.9261111 | 22.5641667 | 36 | 3421 |
| Orévitsa | city | Nomos Kilkis | Greece | 41.0383333 | 22.5727778 | 492 | 3420 |
| Orízartsi | city | Nomos Kilkis | Greece | 40.9261111 | 22.5641667 | 36 | 3421 |
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