| Dieppe to Oignies | 92.76 mi (149.28 km) |
| Dieppe to Oissel | 39.95 mi (64.29 km) |
| Dieppe to Olivet | 146.87 mi (236.36 km) |
| Dieppe to Ollioules | 520.15 mi (837.10 km) |
| Dieppe to Olonne-sur-Mer | 268.11 mi (431.47 km) |
| Dieppe to Oloron-Sainte-Marie | 471.53 mi (758.86 km) |
| Dieppe to Onet Village | 390.29 mi (628.10 km) |
| Dieppe to Onnaing | 116.06 mi (186.78 km) |
| Dieppe to Orange | 436.25 mi (702.07 km) |
| Dieppe to Orchies | 103.10 mi (165.93 km) |
| Dieppe to Orleans | 144.39 mi (232.37 km) |
| Dieppe to Orly | 100.48 mi (161.71 km) |
| Dieppe to Ormesson-sur-Marne | 102.22 mi (164.50 km) |
| Dieppe to Orsay | 98.06 mi (157.81 km) |
| Dieppe to Orthez | 452.93 mi (728.92 km) |
