| Waterloo to Oignies | 63.31 mi (101.88 km) |
| Waterloo to Oissel | 174.25 mi (280.43 km) |
| Waterloo to Olivet | 226.62 mi (364.71 km) |
| Waterloo to Ollioules | 528.05 mi (849.81 km) |
| Waterloo to Olonne-sur-Mer | 402.82 mi (648.27 km) |
| Waterloo to Oloron-Sainte-Marie | 570.22 mi (917.68 km) |
| Waterloo to Onet Village | 446.65 mi (718.81 km) |
| Waterloo to Onnaing | 41.29 mi (66.44 km) |
| Waterloo to Orange | 454.96 mi (732.18 km) |
| Waterloo to Orchies | 52.68 mi (84.79 km) |
| Waterloo to Orleans | 224.09 mi (360.64 km) |
| Waterloo to Orly | 162.72 mi (261.87 km) |
| Waterloo to Ormesson-sur-Marne | 156.78 mi (252.31 km) |
| Waterloo to Orsay | 170.51 mi (274.40 km) |
| Waterloo to Orthez | 554.83 mi (892.91 km) |
