| Grevenmacher to Octeville | 361.49 mi (581.76 km) |
| Grevenmacher to Oignies | 162.30 mi (261.19 km) |
| Grevenmacher to Oissel | 241.11 mi (388.03 km) |
| Grevenmacher to Olivet | 241.84 mi (389.20 km) |
| Grevenmacher to Ollioules | 452.84 mi (728.77 km) |
| Grevenmacher to Olonne-sur-Mer | 436.49 mi (702.46 km) |
| Grevenmacher to Oloron-Sainte-Marie | 559.37 mi (900.22 km) |
| Grevenmacher to Onet Village | 409.39 mi (658.85 km) |
| Grevenmacher to Onnaing | 135.32 mi (217.78 km) |
| Grevenmacher to Orange | 390.58 mi (628.58 km) |
| Grevenmacher to Orchies | 152.01 mi (244.64 km) |
| Grevenmacher to Orleans | 240.07 mi (386.35 km) |
| Grevenmacher to Orly | 193.84 mi (311.96 km) |
| Grevenmacher to Ormesson-sur-Marne | 186.62 mi (300.33 km) |
| Grevenmacher to Orsay | 203.71 mi (327.84 km) |
