| Osterwieck to Octeville | 562.67 mi (905.52 km) |
| Osterwieck to Oignies | 349.68 mi (562.76 km) |
| Osterwieck to Oissel | 458.53 mi (737.93 km) |
| Osterwieck to Olivet | 483.41 mi (777.97 km) |
| Osterwieck to Ollioules | 650.44 mi (1,046.78 km) |
| Osterwieck to Olonne-sur-Mer | 675.39 mi (1,086.93 km) |
| Osterwieck to Oloron-Sainte-Marie | 801.82 mi (1,290.40 km) |
| Osterwieck to Onet Village | 644.08 mi (1,036.55 km) |
| Osterwieck to Onnaing | 326.91 mi (526.11 km) |
| Osterwieck to Orange | 605.32 mi (974.16 km) |
| Osterwieck to Orchies | 339.22 mi (545.93 km) |
| Osterwieck to Orleans | 481.43 mi (774.78 km) |
| Osterwieck to Orly | 428.84 mi (690.15 km) |
| Osterwieck to Ormesson-sur-Marne | 421.73 mi (678.72 km) |
| Osterwieck to Orsay | 438.35 mi (705.46 km) |
