| Notre-Dame-de-Gravenchon to Oignies | 127.15 mi (204.63 km) |
| Notre-Dame-de-Gravenchon to Oissel | 25.51 mi (41.05 km) |
| Notre-Dame-de-Gravenchon to Olivet | 127.63 mi (205.39 km) |
| Notre-Dame-de-Gravenchon to Ollioules | 505.54 mi (813.59 km) |
| Notre-Dame-de-Gravenchon to Olonne-sur-Mer | 230.99 mi (371.74 km) |
| Notre-Dame-de-Gravenchon to Oloron-Sainte-Marie | 438.54 mi (705.76 km) |
| Notre-Dame-de-Gravenchon to Onet Village | 366.61 mi (590.00 km) |
| Notre-Dame-de-Gravenchon to Onnaing | 148.22 mi (238.54 km) |
| Notre-Dame-de-Gravenchon to Orange | 420.38 mi (676.53 km) |
| Notre-Dame-de-Gravenchon to Orchies | 136.89 mi (220.30 km) |
| Notre-Dame-de-Gravenchon to Orleans | 125.46 mi (201.91 km) |
| Notre-Dame-de-Gravenchon to Orly | 97.15 mi (156.35 km) |
| Notre-Dame-de-Gravenchon to Ormesson-sur-Marne | 101.33 mi (163.08 km) |
| Notre-Dame-de-Gravenchon to Orsay | 91.30 mi (146.93 km) |
| Notre-Dame-de-Gravenchon to Orthez | 419.50 mi (675.12 km) |
