| Bergisch Gladbach to Octeville | 398.19 mi (640.82 km) |
| Bergisch Gladbach to Oignies | 184.46 mi (296.85 km) |
| Bergisch Gladbach to Oissel | 290.45 mi (467.44 km) |
| Bergisch Gladbach to Olivet | 319.13 mi (513.60 km) |
| Bergisch Gladbach to Ollioules | 545.88 mi (878.50 km) |
| Bergisch Gladbach to Olonne-sur-Mer | 508.53 mi (818.39 km) |
| Bergisch Gladbach to Oloron-Sainte-Marie | 649.38 mi (1,045.08 km) |
| Bergisch Gladbach to Onet Village | 503.89 mi (810.93 km) |
| Bergisch Gladbach to Onnaing | 160.13 mi (257.70 km) |
| Bergisch Gladbach to Orange | 485.67 mi (781.60 km) |
| Bergisch Gladbach to Orchies | 173.64 mi (279.44 km) |
| Bergisch Gladbach to Orleans | 316.99 mi (510.15 km) |
| Bergisch Gladbach to Orly | 261.90 mi (421.49 km) |
| Bergisch Gladbach to Ormesson-sur-Marne | 254.90 mi (410.23 km) |
| Bergisch Gladbach to Orsay | 271.23 mi (436.50 km) |
