| Mockern to Octeville | 616.51 mi (992.18 km) |
| Mockern to Oignies | 403.54 mi (649.44 km) |
| Mockern to Oissel | 512.11 mi (824.17 km) |
| Mockern to Olivet | 534.61 mi (860.37 km) |
| Mockern to Ollioules | 683.21 mi (1,099.52 km) |
| Mockern to Olonne-sur-Mer | 727.45 mi (1,170.72 km) |
| Mockern to Oloron-Sainte-Marie | 848.31 mi (1,365.23 km) |
| Mockern to Onet Village | 687.30 mi (1,106.10 km) |
| Mockern to Onnaing | 380.69 mi (612.67 km) |
| Mockern to Orange | 642.85 mi (1,034.56 km) |
| Mockern to Orchies | 393.07 mi (632.59 km) |
| Mockern to Orleans | 532.69 mi (857.28 km) |
| Mockern to Orly | 481.15 mi (774.33 km) |
| Mockern to Ormesson-sur-Marne | 474.01 mi (762.84 km) |
| Mockern to Orsay | 490.73 mi (789.75 km) |
