| Vianden to Octeville | 350.73 mi (564.45 km) |
| Vianden to Oignies | 146.86 mi (236.35 km) |
| Vianden to Oissel | 232.50 mi (374.17 km) |
| Vianden to Olivet | 242.26 mi (389.87 km) |
| Vianden to Ollioules | 469.74 mi (755.98 km) |
| Vianden to Olonne-sur-Mer | 435.52 mi (700.91 km) |
| Vianden to Oloron-Sainte-Marie | 566.59 mi (911.84 km) |
| Vianden to Onet Village | 420.40 mi (676.56 km) |
| Vianden to Onnaing | 119.68 mi (192.61 km) |
| Vianden to Orange | 405.77 mi (653.02 km) |
| Vianden to Orchies | 136.27 mi (219.30 km) |
| Vianden to Orleans | 240.32 mi (386.76 km) |
| Vianden to Orly | 190.37 mi (306.37 km) |
| Vianden to Ormesson-sur-Marne | 183.15 mi (294.75 km) |
| Vianden to Orsay | 200.14 mi (322.10 km) |
