| Guerande to Oignies | 328.13 mi (528.08 km) |
| Guerande to Oissel | 213.29 mi (343.25 km) |
| Guerande to Olivet | 205.08 mi (330.04 km) |
| Guerande to Ollioules | 495.46 mi (797.37 km) |
| Guerande to Olonne-sur-Mer | 62.88 mi (101.19 km) |
| Guerande to Oloron-Sainte-Marie | 299.04 mi (481.25 km) |
| Guerande to Onet Village | 316.64 mi (509.59 km) |
| Guerande to Onnaing | 345.88 mi (556.65 km) |
| Guerande to Orange | 412.60 mi (664.01 km) |
| Guerande to Orchies | 336.98 mi (542.31 km) |
| Guerande to Orleans | 205.89 mi (331.34 km) |
| Guerande to Orly | 243.25 mi (391.47 km) |
| Guerande to Ormesson-sur-Marne | 250.48 mi (403.11 km) |
| Guerande to Orsay | 233.39 mi (375.60 km) |
| Guerande to Orthez | 277.23 mi (446.15 km) |
