| Great Missenden to Oerlinghausen | 400.37 mi (644.33 km) |
| Great Missenden to Oestrich-Winkel | 397.39 mi (639.53 km) |
| Great Missenden to Offenburg | 443.20 mi (713.26 km) |
| Great Missenden to Oftersheim | 438.38 mi (705.50 km) |
| Great Missenden to Ohrdruf | 497.77 mi (801.08 km) |
| Great Missenden to Ohringen | 480.74 mi (773.68 km) |
| Great Missenden to Olbernhau | 611.33 mi (983.85 km) |
| Great Missenden to Olching | 585.92 mi (942.95 km) |
| Great Missenden to Oldenburg | 388.56 mi (625.32 km) |
| Great Missenden to Oldenburg in Holstein | 513.51 mi (826.41 km) |
| Great Missenden to Olfen | 346.23 mi (557.20 km) |
| Great Missenden to Olpe | 371.32 mi (597.58 km) |
| Great Missenden to Olsberg | 395.58 mi (636.63 km) |
| Great Missenden to Oranienburg | 593.63 mi (955.35 km) |
| Great Missenden to Ortenberg | 434.00 mi (698.45 km) |
