| Friendly to Octeville | 3,646.36 mi (5,868.24 km) |
| Friendly to Oignies | 3,820.21 mi (6,148.03 km) |
| Friendly to Oissel | 3,768.59 mi (6,064.95 km) |
| Friendly to Olivet | 3,840.04 mi (6,179.94 km) |
| Friendly to Ollioules | 4,148.84 mi (6,676.92 km) |
| Friendly to Olonne-sur-Mer | 3,712.83 mi (5,975.22 km) |
| Friendly to Oloron-Sainte-Marie | 3,852.90 mi (6,200.65 km) |
| Friendly to Onet Village | 3,965.83 mi (6,382.38 km) |
| Friendly to Onnaing | 3,847.05 mi (6,191.23 km) |
| Friendly to Orange | 4,071.81 mi (6,552.95 km) |
| Friendly to Orchies | 3,830.36 mi (6,164.37 km) |
| Friendly to Orleans | 3,839.40 mi (6,178.92 km) |
| Friendly to Orly | 3,838.45 mi (6,177.38 km) |
| Friendly to Ormesson-sur-Marne | 3,843.53 mi (6,185.57 km) |
| Friendly to Orsay | 3,830.91 mi (6,165.26 km) |
