| Douarnenez to Oignies | 368.49 mi (593.02 km) |
| Douarnenez to Oissel | 261.73 mi (421.22 km) |
| Douarnenez to Olivet | 288.54 mi (464.37 km) |
| Douarnenez to Ollioules | 598.39 mi (963.02 km) |
| Douarnenez to Olonne-sur-Mer | 160.96 mi (259.04 km) |
| Douarnenez to Oloron-Sainte-Marie | 383.14 mi (616.60 km) |
| Douarnenez to Onet Village | 419.03 mi (674.37 km) |
| Douarnenez to Onnaing | 390.99 mi (629.23 km) |
| Douarnenez to Orange | 515.50 mi (829.62 km) |
| Douarnenez to Orchies | 378.76 mi (609.56 km) |
| Douarnenez to Orleans | 288.69 mi (464.60 km) |
| Douarnenez to Orly | 311.46 mi (501.25 km) |
| Douarnenez to Ormesson-sur-Marne | 318.35 mi (512.34 km) |
| Douarnenez to Orsay | 301.84 mi (485.76 km) |
| Douarnenez to Orthez | 361.29 mi (581.45 km) |
