| Etterbeek to Oignies | 65.87 mi (106.01 km) |
| Etterbeek to Oissel | 178.62 mi (287.46 km) |
| Etterbeek to Olivet | 233.59 mi (375.93 km) |
| Etterbeek to Ollioules | 536.02 mi (862.65 km) |
| Etterbeek to Olonne-sur-Mer | 408.40 mi (657.25 km) |
| Etterbeek to Oloron-Sainte-Marie | 577.46 mi (929.33 km) |
| Etterbeek to Onet Village | 454.55 mi (731.53 km) |
| Etterbeek to Onnaing | 46.18 mi (74.32 km) |
| Etterbeek to Orange | 463.01 mi (745.14 km) |
| Etterbeek to Orchies | 55.71 mi (89.66 km) |
| Etterbeek to Orleans | 231.05 mi (371.84 km) |
| Etterbeek to Orly | 169.47 mi (272.73 km) |
| Etterbeek to Ormesson-sur-Marne | 163.64 mi (263.35 km) |
| Etterbeek to Orsay | 177.09 mi (285.00 km) |
| Etterbeek to Orthez | 561.97 mi (904.40 km) |
