| Saint-Brieuc to Oestrich-Winkel | 495.74 mi (797.81 km) |
| Saint-Brieuc to Offenburg | 489.52 mi (787.80 km) |
| Saint-Brieuc to Oftersheim | 517.98 mi (833.60 km) |
| Saint-Brieuc to Ohrdruf | 623.41 mi (1,003.28 km) |
| Saint-Brieuc to Ohringen | 558.97 mi (899.57 km) |
| Saint-Brieuc to Olbernhau | 734.68 mi (1,182.35 km) |
| Saint-Brieuc to Olching | 645.98 mi (1,039.60 km) |
| Saint-Brieuc to Oldenburg | 575.18 mi (925.66 km) |
| Saint-Brieuc to Oldenburg in Holstein | 709.36 mi (1,141.61 km) |
| Saint-Brieuc to Olfen | 500.57 mi (805.58 km) |
| Saint-Brieuc to Olpe | 503.08 mi (809.62 km) |
| Saint-Brieuc to Olsberg | 536.61 mi (863.59 km) |
| Saint-Brieuc to Oranienburg | 757.96 mi (1,219.83 km) |
| Saint-Brieuc to Ortenberg | 545.52 mi (877.94 km) |
| Saint-Brieuc to Oschatz | 730.44 mi (1,175.53 km) |
