| obliterazione | cancellation |
| oblo | window |
| oblungo | elongated |
| Oblys del Kazakistan Meridionale | South Kazakhstan Province |
| Oblys del Kazakistan Occidentale | West Kazakhstan Province |
| Oblys del Kazakistan Orientale | East Kazakhstan Province |
| Oblys del Kazakistan Settentrionale | North Kazakhstan Province |
| Oblys di Almaty | Almaty Province |
| Oblys di Aqmola | Akmola Province |
| Oblys di Aqtöbe | Aktobe Province |
| Oblys di Mangghystau | Mangystau Province |
| Oblys di Qaraghandy | Karagandy Province |
| oblò | port |
| Obninsk | Obninsk |
