| Poiana Mare to Octeville | 1,227.69 mi (1,975.77 km) |
| Poiana Mare to Oignies | 1,041.19 mi (1,675.64 km) |
| Poiana Mare to Oissel | 1,103.41 mi (1,775.76 km) |
| Poiana Mare to Olivet | 1,050.42 mi (1,690.48 km) |
| Poiana Mare to Ollioules | 863.51 mi (1,389.68 km) |
| Poiana Mare to Olonne-sur-Mer | 1,217.51 mi (1,959.39 km) |
| Poiana Mare to Oloron-Sainte-Marie | 1,183.08 mi (1,903.98 km) |
| Poiana Mare to Onet Village | 1,013.59 mi (1,631.22 km) |
| Poiana Mare to Onnaing | 1,014.16 mi (1,632.14 km) |
| Poiana Mare to Orange | 905.92 mi (1,457.94 km) |
| Poiana Mare to Orchies | 1,030.84 mi (1,658.97 km) |
| Poiana Mare to Orleans | 1,050.37 mi (1,690.40 km) |
| Poiana Mare to Orly | 1,037.58 mi (1,669.82 km) |
| Poiana Mare to Ormesson-sur-Marne | 1,031.63 mi (1,660.25 km) |
| Poiana Mare to Orsay | 1,046.19 mi (1,683.68 km) |
