| Mamoudzou to Oberkirch | 4,807.03 mi (7,736.16 km) |
| Mamoudzou to Obernburg am Main | 4,848.29 mi (7,802.58 km) |
| Mamoudzou to Obernkirchen | 4,982.12 mi (8,017.95 km) |
| Mamoudzou to Oberschleissheim | 4,694.61 mi (7,555.24 km) |
| Mamoudzou to Oberstdorf | 4,683.31 mi (7,537.06 km) |
| Mamoudzou to Obertraubling | 4,719.12 mi (7,594.69 km) |
| Mamoudzou to Obertshausen | 4,869.06 mi (7,836.00 km) |
| Mamoudzou to Oberursel | 4,883.49 mi (7,859.22 km) |
| Mamoudzou to Ochsenfurt | 4,812.85 mi (7,745.54 km) |
| Mamoudzou to Ochsenhausen | 4,729.07 mi (7,610.71 km) |
| Mamoudzou to Ochtrup | 5,029.10 mi (8,093.56 km) |
| Mamoudzou to Odenthal | 4,968.27 mi (7,995.65 km) |
| Mamoudzou to Oelde | 4,983.55 mi (8,020.25 km) |
| Mamoudzou to Oelsnitz | 4,801.47 mi (7,727.23 km) |
| Mamoudzou to Oer-Erkenschwick | 4,997.23 mi (8,042.26 km) |
