| Oudenburg to Obernburg am Main | 285.25 mi (459.07 km) |
| Oudenburg to Obernkirchen | 272.22 mi (438.10 km) |
| Oudenburg to Oberschleissheim | 432.68 mi (696.34 km) |
| Oudenburg to Oberstdorf | 418.66 mi (673.77 km) |
| Oudenburg to Obertraubling | 434.04 mi (698.53 km) |
| Oudenburg to Obertshausen | 266.99 mi (429.68 km) |
| Oudenburg to Oberursel | 253.24 mi (407.55 km) |
| Oudenburg to Ochsenfurt | 328.50 mi (528.68 km) |
| Oudenburg to Ochsenhausen | 377.77 mi (607.97 km) |
| Oudenburg to Ochtrup | 192.83 mi (310.32 km) |
| Oudenburg to Odenthal | 178.86 mi (287.85 km) |
| Oudenburg to Oelde | 225.93 mi (363.59 km) |
| Oudenburg to Oelsnitz | 403.52 mi (649.40 km) |
| Oudenburg to Oer-Erkenschwick | 185.88 mi (299.14 km) |
| Oudenburg to Oerlinghausen | 249.21 mi (401.06 km) |
