| Ourense to Octeville | 585.13 mi (941.67 km) |
| Ourense to Oignies | 762.22 mi (1,226.68 km) |
| Ourense to Oissel | 647.24 mi (1,041.63 km) |
| Ourense to Olivet | 609.62 mi (981.09 km) |
| Ourense to Ollioules | 697.17 mi (1,121.99 km) |
| Ourense to Olonne-sur-Mer | 417.47 mi (671.86 km) |
| Ourense to Oloron-Sainte-Marie | 372.70 mi (599.81 km) |
| Ourense to Onet Village | 543.33 mi (874.41 km) |
| Ourense to Onnaing | 778.13 mi (1,252.28 km) |
| Ourense to Orange | 649.25 mi (1,044.87 km) |
| Ourense to Orchies | 770.55 mi (1,240.07 km) |
| Ourense to Orleans | 611.48 mi (984.08 km) |
| Ourense to Orly | 664.04 mi (1,068.67 km) |
| Ourense to Ormesson-sur-Marne | 671.05 mi (1,079.95 km) |
| Ourense to Orsay | 654.73 mi (1,053.68 km) |
