| Mestre to Octeville | 706.14 mi (1,136.42 km) |
| Mestre to Oignies | 548.07 mi (882.03 km) |
| Mestre to Oissel | 584.35 mi (940.43 km) |
| Mestre to Olivet | 516.28 mi (830.87 km) |
| Mestre to Ollioules | 355.13 mi (571.53 km) |
| Mestre to Olonne-sur-Mer | 675.27 mi (1,086.75 km) |
| Mestre to Oloron-Sainte-Marie | 653.45 mi (1,051.63 km) |
| Mestre to Onet Village | 477.84 mi (769.01 km) |
| Mestre to Onnaing | 523.26 mi (842.11 km) |
| Mestre to Orange | 375.74 mi (604.70 km) |
| Mestre to Orchies | 539.35 mi (867.99 km) |
| Mestre to Orleans | 516.59 mi (831.37 km) |
| Mestre to Orly | 514.07 mi (827.32 km) |
| Mestre to Ormesson-sur-Marne | 509.06 mi (819.26 km) |
| Mestre to Orsay | 521.58 mi (839.41 km) |
