| Rennes to Octeville | 104.50 mi (168.17 km) |
| Rennes to Oignies | 266.01 mi (428.11 km) |
| Rennes to Oissel | 152.09 mi (244.77 km) |
| Rennes to Olivet | 166.44 mi (267.85 km) |
| Rennes to Ollioules | 499.98 mi (804.64 km) |
| Rennes to Olonne-sur-Mer | 109.16 mi (175.67 km) |
| Rennes to Oloron-Sainte-Marie | 343.89 mi (553.43 km) |
| Rennes to Onet Village | 329.73 mi (530.65 km) |
| Rennes to Onnaing | 285.06 mi (458.76 km) |
| Rennes to Orange | 414.52 mi (667.10 km) |
| Rennes to Orchies | 275.24 mi (442.96 km) |
| Rennes to Orleans | 166.50 mi (267.96 km) |
| Rennes to Orly | 191.66 mi (308.45 km) |
| Rennes to Ormesson-sur-Marne | 198.74 mi (319.84 km) |
| Rennes to Orsay | 181.86 mi (292.68 km) |
