| Osimo to Oberkirch | 434.39 mi (699.08 km) |
| Osimo to Obernburg am Main | 484.86 mi (780.31 km) |
| Osimo to Obernkirchen | 639.39 mi (1,029.00 km) |
| Osimo to Oberschleissheim | 341.98 mi (550.37 km) |
| Osimo to Oberstdorf | 312.54 mi (502.98 km) |
| Osimo to Obertraubling | 383.98 mi (617.95 km) |
| Osimo to Obertshausen | 505.05 mi (812.80 km) |
| Osimo to Oberursel | 518.71 mi (834.78 km) |
| Osimo to Ochsenfurt | 455.82 mi (733.56 km) |
| Osimo to Ochsenhausen | 359.83 mi (579.10 km) |
| Osimo to Ochtrup | 668.98 mi (1,076.62 km) |
| Osimo to Odenthal | 600.52 mi (966.44 km) |
| Osimo to Oelde | 627.63 mi (1,010.08 km) |
| Osimo to Oelsnitz | 483.04 mi (777.37 km) |
| Osimo to Oer-Erkenschwick | 633.66 mi (1,019.77 km) |
