| Marino to Octeville | 876.04 mi (1,409.86 km) |
| Marino to Oignies | 757.73 mi (1,219.45 km) |
| Marino to Oissel | 764.95 mi (1,231.07 km) |
| Marino to Olivet | 674.15 mi (1,084.94 km) |
| Marino to Ollioules | 360.25 mi (579.77 km) |
| Marino to Olonne-sur-Mer | 786.48 mi (1,265.72 km) |
| Marino to Oloron-Sainte-Marie | 682.78 mi (1,098.83 km) |
| Marino to Onet Village | 538.80 mi (867.12 km) |
| Marino to Onnaing | 736.22 mi (1,184.83 km) |
| Marino to Orange | 429.57 mi (691.32 km) |
| Marino to Orchies | 750.82 mi (1,208.33 km) |
| Marino to Orleans | 675.35 mi (1,086.87 km) |
| Marino to Orly | 693.19 mi (1,115.58 km) |
| Marino to Ormesson-sur-Marne | 690.04 mi (1,110.51 km) |
| Marino to Orsay | 698.36 mi (1,123.89 km) |
