| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Obodovka Novaya | city | Ukraine | 48.42 | 29.25 | 830 | 5792 | |
| Odrizhin | city | Ukraine | 51.97 | 25.46 | 830 | 2677 | |
| Odrub | city | Ukraine | 51.32 | 34.31 | 830 | 2831 | |
| Odryzhin | city | Ukraine | 51.97 | 25.46 | 830 | 2677 | |
| Okhotnich'ye Khozyaystvo Lysovskiye Khutora | city | Ukraine | 49.50 | 36.42 | 410 | 3966 | |
| Okhotnich’ye Khozyaystvo Lysovskiye Khutora | city | Ukraine | 49.50 | 36.42 | 410 | 3966 | |
| Oleyyeva | city | Ukraine | 48.73 | 25.35 | 1020 | 6854 | |
| Osava | city | Ukraine | 51.83 | 24.23 | 830 | 1639 | |
| Osnova | city | Ukraine | 49.94 | 36.26 | 830 | 413722 | |
| Osnowa | city | Ukraine | 49.94 | 36.26 | 830 | 413722 | |
| Osova | city | Ukraine | 51.83 | 24.23 | 830 | 1639 | |
| Otruba | city | Ukraine | 51.32 | 34.31 | 830 | 2831 |