| Canals to Octeville | 738.77 mi (1,188.94 km) |
| Canals to Oignies | 814.06 mi (1,310.10 km) |
| Canals to Oissel | 721.99 mi (1,161.93 km) |
| Canals to Olivet | 627.55 mi (1,009.95 km) |
| Canals to Ollioules | 442.09 mi (711.48 km) |
| Canals to Olonne-sur-Mer | 526.82 mi (847.84 km) |
| Canals to Oloron-Sainte-Marie | 292.48 mi (470.70 km) |
| Canals to Onet Village | 407.78 mi (656.26 km) |
| Canals to Onnaing | 815.48 mi (1,312.39 km) |
| Canals to Orange | 453.39 mi (729.67 km) |
| Canals to Orchies | 817.13 mi (1,315.05 km) |
| Canals to Orleans | 630.24 mi (1,014.28 km) |
| Canals to Orly | 691.87 mi (1,113.46 km) |
| Canals to Ormesson-sur-Marne | 696.25 mi (1,120.51 km) |
| Canals to Orsay | 686.68 mi (1,105.11 km) |
