| Ogulin to Oignies | 670.00 mi (1,078.26 km) |
| Ogulin to Oissel | 718.14 mi (1,155.73 km) |
| Ogulin to Olivet | 656.94 mi (1,057.24 km) |
| Ogulin to Ollioules | 486.86 mi (783.53 km) |
| Ogulin to Olonne-sur-Mer | 820.35 mi (1,320.23 km) |
| Ogulin to Oloron-Sainte-Marie | 795.40 mi (1,280.08 km) |
| Ogulin to Onet Village | 621.57 mi (1,000.32 km) |
| Ogulin to Onnaing | 643.90 mi (1,036.26 km) |
| Ogulin to Orange | 517.01 mi (832.05 km) |
| Ogulin to Orchies | 660.45 mi (1,062.90 km) |
| Ogulin to Orleans | 657.06 mi (1,057.44 km) |
| Ogulin to Orly | 649.57 mi (1,045.38 km) |
| Ogulin to Ormesson-sur-Marne | 644.09 mi (1,036.56 km) |
| Ogulin to Orsay | 657.64 mi (1,058.37 km) |
| Ogulin to Orthez | 798.07 mi (1,284.37 km) |
