| Martellago to Octeville | 700.85 mi (1,127.92 km) |
| Martellago to Oignies | 542.57 mi (873.19 km) |
| Martellago to Oissel | 579.01 mi (931.83 km) |
| Martellago to Olivet | 511.21 mi (822.71 km) |
| Martellago to Ollioules | 353.27 mi (568.53 km) |
| Martellago to Olonne-sur-Mer | 670.70 mi (1,079.39 km) |
| Martellago to Oloron-Sainte-Marie | 650.26 mi (1,046.49 km) |
| Martellago to Onet Village | 474.38 mi (763.44 km) |
| Martellago to Onnaing | 517.76 mi (833.26 km) |
| Martellago to Orange | 372.74 mi (599.87 km) |
| Martellago to Orchies | 533.85 mi (859.15 km) |
| Martellago to Orleans | 511.50 mi (823.19 km) |
| Martellago to Orly | 508.77 mi (818.78 km) |
| Martellago to Ormesson-sur-Marne | 503.75 mi (810.70 km) |
| Martellago to Orsay | 516.30 mi (830.91 km) |
