| Union Hill-Novelty Hill to Octeville | 4,833.70 mi (7,779.08 km) |
| Union Hill-Novelty Hill to Oignies | 4,910.78 mi (7,903.14 km) |
| Union Hill-Novelty Hill to Oissel | 4,923.84 mi (7,924.15 km) |
| Union Hill-Novelty Hill to Olivet | 5,028.09 mi (8,091.94 km) |
| Union Hill-Novelty Hill to Ollioules | 5,405.32 mi (8,699.03 km) |
| Union Hill-Novelty Hill to Olonne-sur-Mer | 4,998.55 mi (8,044.39 km) |
| Union Hill-Novelty Hill to Oloron-Sainte-Marie | 5,217.32 mi (8,396.46 km) |
| Union Hill-Novelty Hill to Onet Village | 5,244.53 mi (8,440.25 km) |
| Union Hill-Novelty Hill to Onnaing | 4,930.80 mi (7,935.36 km) |
| Union Hill-Novelty Hill to Orange | 5,319.17 mi (8,560.38 km) |
| Union Hill-Novelty Hill to Orchies | 4,916.88 mi (7,912.96 km) |
| Union Hill-Novelty Hill to Orleans | 5,026.16 mi (8,088.82 km) |
| Union Hill-Novelty Hill to Orly | 4,991.95 mi (8,033.77 km) |
| Union Hill-Novelty Hill to Ormesson-sur-Marne | 4,993.46 mi (8,036.19 km) |
| Union Hill-Novelty Hill to Orsay | 4,989.05 mi (8,029.11 km) |
