| Anderlecht to Oignies | 63.85 mi (102.76 km) |
| Anderlecht to Oissel | 176.82 mi (284.56 km) |
| Anderlecht to Olivet | 232.53 mi (374.21 km) |
| Anderlecht to Ollioules | 536.33 mi (863.14 km) |
| Anderlecht to Olonne-sur-Mer | 406.84 mi (654.74 km) |
| Anderlecht to Oloron-Sainte-Marie | 576.51 mi (927.81 km) |
| Anderlecht to Onet Village | 454.13 mi (730.85 km) |
| Anderlecht to Onnaing | 44.57 mi (71.73 km) |
| Anderlecht to Orange | 463.11 mi (745.31 km) |
| Anderlecht to Orchies | 53.76 mi (86.51 km) |
| Anderlecht to Orleans | 229.98 mi (370.11 km) |
| Anderlecht to Orly | 168.31 mi (270.87 km) |
| Anderlecht to Ormesson-sur-Marne | 162.53 mi (261.56 km) |
| Anderlecht to Orsay | 175.87 mi (283.03 km) |
| Anderlecht to Orthez | 560.97 mi (902.79 km) |
