| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Оаржа | city | Arges | Romania | 44.77 | 24.97 | 830 | 35653 |
| Огрезя | city | Arges | Romania | 45.05 | 24.97 | 1115 | 9556 |
| Одеєнь | city | Arges | Romania | 44.70 | 24.97 | 830 | 6126 |
| Опрешть | city | Arges | Romania | 45.08 | 25.00 | 1669 | 11531 |
| Ородел | city | Arges | Romania | 44.52 | 25.02 | 830 | 4590 |
| Оцелу | city | Arges | Romania | 45.25 | 24.95 | 2080 | 5403 |