| Saint-Brieuc to Oegstgeest | 407.05 mi (655.09 km) |
| Saint-Brieuc to Oirschot | 413.00 mi (664.66 km) |
| Saint-Brieuc to Oisterwijk | 411.83 mi (662.77 km) |
| Saint-Brieuc to Oldebroek | 467.59 mi (752.52 km) |
| Saint-Brieuc to Oldenzaal | 500.76 mi (805.90 km) |
| Saint-Brieuc to Ommen | 488.54 mi (786.23 km) |
| Saint-Brieuc to Oosterend | 494.62 mi (796.02 km) |
| Saint-Brieuc to Oosterhout | 400.91 mi (645.20 km) |
| Saint-Brieuc to Oosterwolde | 501.78 mi (807.53 km) |
| Saint-Brieuc to Oostzaan | 431.43 mi (694.31 km) |
| Saint-Brieuc to Opmeer | 444.68 mi (715.64 km) |
| Saint-Brieuc to Oss | 429.76 mi (691.64 km) |
| Saint-Brieuc to Oud-Beijerland | 390.43 mi (628.33 km) |
| Saint-Brieuc to Oudenbosch | 386.68 mi (622.30 km) |
| Saint-Brieuc to Oudewater | 414.63 mi (667.29 km) |
