| Narni to Octeville | 835.64 mi (1,344.84 km) |
| Narni to Oignies | 710.94 mi (1,144.14 km) |
| Narni to Oissel | 722.39 mi (1,162.58 km) |
| Narni to Olivet | 634.47 mi (1,021.08 km) |
| Narni to Ollioules | 340.61 mi (548.16 km) |
| Narni to Olonne-sur-Mer | 755.32 mi (1,215.57 km) |
| Narni to Oloron-Sainte-Marie | 665.67 mi (1,071.28 km) |
| Narni to Onet Village | 513.58 mi (826.53 km) |
| Narni to Onnaing | 688.90 mi (1,108.68 km) |
| Narni to Orange | 403.07 mi (648.67 km) |
| Narni to Orchies | 703.75 mi (1,132.58 km) |
| Narni to Orleans | 635.55 mi (1,022.81 km) |
| Narni to Orly | 650.46 mi (1,046.81 km) |
| Narni to Ormesson-sur-Marne | 647.01 mi (1,041.26 km) |
| Narni to Orsay | 656.00 mi (1,055.73 km) |
