| Barking to Oberkirch | 411.14 mi (661.66 km) |
| Barking to Obernburg am Main | 413.35 mi (665.22 km) |
| Barking to Obernkirchen | 388.28 mi (624.87 km) |
| Barking to Oberschleissheim | 558.73 mi (899.18 km) |
| Barking to Oberstdorf | 538.82 mi (867.15 km) |
| Barking to Obertraubling | 562.04 mi (904.51 km) |
| Barking to Obertshausen | 395.27 mi (636.13 km) |
| Barking to Oberursel | 381.58 mi (614.09 km) |
| Barking to Ochsenfurt | 456.65 mi (734.91 km) |
| Barking to Ochsenhausen | 500.45 mi (805.39 km) |
| Barking to Ochtrup | 306.65 mi (493.51 km) |
| Barking to Odenthal | 305.96 mi (492.40 km) |
| Barking to Oelde | 346.10 mi (556.99 km) |
| Barking to Oelsnitz | 530.86 mi (854.34 km) |
| Barking to Oer-Erkenschwick | 307.77 mi (495.30 km) |
