| Mamoudzou to Oerlinghausen | 4,977.29 mi (8,010.18 km) |
| Mamoudzou to Oestrich-Winkel | 4,888.36 mi (7,867.05 km) |
| Mamoudzou to Offenburg | 4,807.77 mi (7,737.37 km) |
| Mamoudzou to Oftersheim | 4,838.05 mi (7,786.09 km) |
| Mamoudzou to Ohrdruf | 4,860.97 mi (7,822.97 km) |
| Mamoudzou to Ohringen | 4,803.43 mi (7,730.37 km) |
| Mamoudzou to Olbernhau | 4,787.13 mi (7,704.14 km) |
| Mamoudzou to Olching | 4,698.54 mi (7,561.56 km) |
| Mamoudzou to Oldenburg | 5,053.26 mi (8,132.43 km) |
| Mamoudzou to Oldenburg in Holstein | 5,052.62 mi (8,131.40 km) |
| Mamoudzou to Olfen | 4,997.66 mi (8,042.96 km) |
| Mamoudzou to Olpe | 4,947.79 mi (7,962.71 km) |
| Mamoudzou to Olsberg | 4,948.43 mi (7,963.74 km) |
| Mamoudzou to Oranienburg | 4,910.01 mi (7,901.89 km) |
| Mamoudzou to Ortenberg | 4,878.85 mi (7,851.75 km) |
