| Saint-Brieuc to Novi di Modena | 692.97 mi (1,115.23 km) |
| Saint-Brieuc to Novi Ligure | 605.45 mi (974.39 km) |
| Saint-Brieuc to Nuoro | 821.14 mi (1,321.49 km) |
| Saint-Brieuc to Occhiobello | 722.15 mi (1,162.19 km) |
| Saint-Brieuc to Oderzo | 740.05 mi (1,190.99 km) |
| Saint-Brieuc to Oggiono | 598.97 mi (963.95 km) |
| Saint-Brieuc to Olbia | 797.11 mi (1,282.83 km) |
| Saint-Brieuc to Oleggio | 572.38 mi (921.16 km) |
| Saint-Brieuc to Olgiate Comasco | 581.96 mi (936.58 km) |
| Saint-Brieuc to Olgiate Olona | 582.43 mi (937.34 km) |
| Saint-Brieuc to Omegna | 554.61 mi (892.56 km) |
| Saint-Brieuc to Opera | 604.32 mi (972.56 km) |
| Saint-Brieuc to Oppeano | 693.67 mi (1,116.35 km) |
| Saint-Brieuc to Orbassano | 543.88 mi (875.29 km) |
| Saint-Brieuc to Orbetello | 794.87 mi (1,279.22 km) |
