| Saint-Brieuc to Orzesze | 971.90 mi (1,564.12 km) |
| Saint-Brieuc to Osowa | 996.10 mi (1,603.07 km) |
| Saint-Brieuc to Ostroda | 1,043.76 mi (1,679.77 km) |
| Saint-Brieuc to Ostroleka | 1,102.26 mi (1,773.91 km) |
| Saint-Brieuc to Ostrow Mazowiecka | 1,114.09 mi (1,792.96 km) |
| Saint-Brieuc to Ostrow Wielkopolski | 934.49 mi (1,503.92 km) |
| Saint-Brieuc to Ostrowiec Swietokrzyski | 1,087.23 mi (1,749.72 km) |
| Saint-Brieuc to Ostrzeszow | 938.17 mi (1,509.84 km) |
| Saint-Brieuc to Oswiecim | 993.05 mi (1,598.17 km) |
| Saint-Brieuc to Otwock | 1,083.72 mi (1,744.08 km) |
| Saint-Brieuc to Ozarow Mazowiecki | 1,064.49 mi (1,713.13 km) |
| Saint-Brieuc to Ozimek | 948.03 mi (1,525.70 km) |
| Saint-Brieuc to Ozorkow | 998.88 mi (1,607.55 km) |
| Saint-Brieuc to Pabianice | 1,001.46 mi (1,611.69 km) |
| Saint-Brieuc to Parczew | 1,150.65 mi (1,851.79 km) |
