| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Оба-Сирма | city | Chuvashiya | Russia | 55.83 | 47.02 | 830 | 3240 |
| Обабкова | city | Kurganskaya Oblast' | Russia | 55.81 | 65.31 | 377 | 447 |
| Обаимы | city | Kirovskaya Oblast' | Russia | 58.61 | 48.46 | 383 | 582 |
| Обалыкуль | city | Omskaya Oblast' | Russia | 53.75 | 73.48 | 403 | 596 |
| Обанино | city | Kurganskaya Oblast' | Russia | 54.84 | 64.65 | 305 | 745 |