| Clydebank to Octeville | 448.39 mi (721.61 km) |
| Clydebank to Oignies | 483.71 mi (778.46 km) |
| Clydebank to Oissel | 507.92 mi (817.42 km) |
| Clydebank to Olivet | 616.24 mi (991.74 km) |
| Clydebank to Ollioules | 991.85 mi (1,596.24 km) |
| Clydebank to Olonne-sur-Mer | 656.76 mi (1,056.95 km) |
| Clydebank to Oloron-Sainte-Marie | 893.84 mi (1,438.50 km) |
| Clydebank to Onet Village | 853.97 mi (1,374.33 km) |
| Clydebank to Onnaing | 504.25 mi (811.51 km) |
| Clydebank to Orange | 907.88 mi (1,461.10 km) |
| Clydebank to Orchies | 490.00 mi (788.58 km) |
| Clydebank to Orleans | 613.95 mi (988.06 km) |
| Clydebank to Orly | 571.01 mi (918.95 km) |
| Clydebank to Ormesson-sur-Marne | 571.54 mi (919.80 km) |
| Clydebank to Orsay | 569.57 mi (916.63 km) |
