| Oldenzaal to Octeville | 416.51 mi (670.30 km) |
| Oldenzaal to Oignies | 212.42 mi (341.86 km) |
| Oldenzaal to Oissel | 327.31 mi (526.75 km) |
| Oldenzaal to Olivet | 379.83 mi (611.28 km) |
| Oldenzaal to Ollioules | 636.08 mi (1,023.67 km) |
| Oldenzaal to Olonne-sur-Mer | 558.36 mi (898.60 km) |
| Oldenzaal to Oloron-Sainte-Marie | 720.17 mi (1,159.01 km) |
| Oldenzaal to Onet Village | 584.13 mi (940.07 km) |
| Oldenzaal to Onnaing | 196.11 mi (315.61 km) |
| Oldenzaal to Orange | 573.40 mi (922.79 km) |
| Oldenzaal to Orchies | 203.65 mi (327.74 km) |
| Oldenzaal to Orleans | 377.41 mi (607.38 km) |
| Oldenzaal to Orly | 317.21 mi (510.51 km) |
| Oldenzaal to Ormesson-sur-Marne | 310.92 mi (500.37 km) |
| Oldenzaal to Orsay | 325.43 mi (523.73 km) |
