| Maesteg to Oberkirch | 561.27 mi (903.28 km) |
| Maesteg to Obernburg am Main | 571.89 mi (920.37 km) |
| Maesteg to Obernkirchen | 545.04 mi (877.16 km) |
| Maesteg to Oberschleissheim | 713.92 mi (1,148.94 km) |
| Maesteg to Oberstdorf | 687.55 mi (1,106.51 km) |
| Maesteg to Obertraubling | 720.16 mi (1,158.99 km) |
| Maesteg to Obertshausen | 554.30 mi (892.06 km) |
| Maesteg to Oberursel | 540.84 mi (870.39 km) |
| Maesteg to Ochsenfurt | 615.24 mi (990.13 km) |
| Maesteg to Ochsenhausen | 652.13 mi (1,049.50 km) |
| Maesteg to Ochtrup | 463.47 mi (745.88 km) |
| Maesteg to Odenthal | 466.18 mi (750.24 km) |
| Maesteg to Oelde | 504.75 mi (812.31 km) |
| Maesteg to Oelsnitz | 691.09 mi (1,112.19 km) |
| Maesteg to Oer-Erkenschwick | 467.13 mi (751.78 km) |
