| Saint-Brieuc to Octeville | 92.18 mi (148.35 km) |
| Saint-Brieuc to Oignies | 291.54 mi (469.18 km) |
| Saint-Brieuc to Oissel | 184.17 mi (296.39 km) |
| Saint-Brieuc to Olivet | 219.53 mi (353.29 km) |
| Saint-Brieuc to Ollioules | 555.98 mi (894.77 km) |
| Saint-Brieuc to Olonne-sur-Mer | 144.26 mi (232.17 km) |
| Saint-Brieuc to Oloron-Sainte-Marie | 381.89 mi (614.59 km) |
| Saint-Brieuc to Onet Village | 383.53 mi (617.23 km) |
| Saint-Brieuc to Onnaing | 313.66 mi (504.78 km) |
| Saint-Brieuc to Orange | 470.79 mi (757.66 km) |
| Saint-Brieuc to Orchies | 301.69 mi (485.53 km) |
| Saint-Brieuc to Orleans | 219.30 mi (352.92 km) |
| Saint-Brieuc to Orly | 236.04 mi (379.87 km) |
| Saint-Brieuc to Ormesson-sur-Marne | 242.77 mi (390.71 km) |
| Saint-Brieuc to Orsay | 226.60 mi (364.67 km) |
