| Grumo Nevano to Octeville | 975.95 mi (1,570.64 km) |
| Grumo Nevano to Oignies | 852.46 mi (1,371.90 km) |
| Grumo Nevano to Oissel | 863.71 mi (1,390.00 km) |
| Grumo Nevano to Olivet | 774.28 mi (1,246.08 km) |
| Grumo Nevano to Ollioules | 457.93 mi (736.96 km) |
| Grumo Nevano to Olonne-sur-Mer | 887.20 mi (1,427.81 km) |
| Grumo Nevano to Oloron-Sainte-Marie | 777.65 mi (1,251.50 km) |
| Grumo Nevano to Onet Village | 638.13 mi (1,026.97 km) |
| Grumo Nevano to Onnaing | 830.21 mi (1,336.10 km) |
| Grumo Nevano to Orange | 529.53 mi (852.19 km) |
| Grumo Nevano to Orchies | 845.17 mi (1,360.18 km) |
| Grumo Nevano to Orleans | 775.44 mi (1,247.94 km) |
| Grumo Nevano to Orly | 791.82 mi (1,274.31 km) |
| Grumo Nevano to Ormesson-sur-Marne | 788.47 mi (1,268.92 km) |
| Grumo Nevano to Orsay | 797.22 mi (1,283.01 km) |
