| Aberbargoed to Oberkirch | 545.84 mi (878.44 km) |
| Aberbargoed to Obernburg am Main | 554.63 mi (892.59 km) |
| Aberbargoed to Obernkirchen | 526.04 mi (846.58 km) |
| Aberbargoed to Oberschleissheim | 697.57 mi (1,122.63 km) |
| Aberbargoed to Oberstdorf | 672.48 mi (1,082.25 km) |
| Aberbargoed to Obertraubling | 703.06 mi (1,131.47 km) |
| Aberbargoed to Obertshausen | 536.87 mi (864.01 km) |
| Aberbargoed to Oberursel | 523.32 mi (842.21 km) |
| Aberbargoed to Ochsenfurt | 597.97 mi (962.35 km) |
| Aberbargoed to Ochsenhausen | 636.48 mi (1,024.32 km) |
| Aberbargoed to Ochtrup | 444.49 mi (715.34 km) |
| Aberbargoed to Odenthal | 448.05 mi (721.07 km) |
| Aberbargoed to Oelde | 485.96 mi (782.08 km) |
| Aberbargoed to Oelsnitz | 672.94 mi (1,082.99 km) |
| Aberbargoed to Oer-Erkenschwick | 448.49 mi (721.78 km) |
