| Ovada to Octeville | 593.02 mi (954.38 km) |
| Ovada to Oignies | 481.08 mi (774.22 km) |
| Ovada to Oissel | 481.61 mi (775.07 km) |
| Ovada to Olivet | 391.58 mi (630.19 km) |
| Ovada to Ollioules | 173.68 mi (279.51 km) |
| Ovada to Olonne-sur-Mer | 520.13 mi (837.07 km) |
| Ovada to Oloron-Sainte-Marie | 470.96 mi (757.93 km) |
| Ovada to Onet Village | 298.80 mi (480.88 km) |
| Ovada to Onnaing | 461.55 mi (742.79 km) |
| Ovada to Orange | 192.55 mi (309.88 km) |
| Ovada to Orchies | 475.12 mi (764.63 km) |
| Ovada to Orleans | 392.68 mi (631.96 km) |
| Ovada to Orly | 409.95 mi (659.76 km) |
| Ovada to Ormesson-sur-Marne | 406.96 mi (654.94 km) |
| Ovada to Orsay | 414.98 mi (667.84 km) |
