| Bar to Octeville | 1,120.24 mi (1,802.85 km) |
| Bar to Oignies | 958.80 mi (1,543.03 km) |
| Bar to Oissel | 998.81 mi (1,607.43 km) |
| Bar to Olivet | 927.42 mi (1,492.54 km) |
| Bar to Ollioules | 676.93 mi (1,089.41 km) |
| Bar to Olonne-sur-Mer | 1,072.75 mi (1,726.43 km) |
| Bar to Oloron-Sainte-Marie | 1,002.04 mi (1,612.62 km) |
| Bar to Onet Village | 844.02 mi (1,358.32 km) |
| Bar to Onnaing | 933.15 mi (1,501.76 km) |
| Bar to Orange | 733.35 mi (1,180.21 km) |
| Bar to Orchies | 949.56 mi (1,528.17 km) |
| Bar to Orleans | 927.93 mi (1,493.36 km) |
| Bar to Orly | 928.34 mi (1,494.01 km) |
| Bar to Ormesson-sur-Marne | 923.42 mi (1,486.10 km) |
| Bar to Orsay | 935.70 mi (1,505.87 km) |
