| Nailsea to Oberkirch | 521.04 mi (838.53 km) |
| Nailsea to Obernburg am Main | 532.36 mi (856.75 km) |
| Nailsea to Obernkirchen | 509.67 mi (820.23 km) |
| Nailsea to Oberschleissheim | 673.82 mi (1,084.42 km) |
| Nailsea to Oberstdorf | 647.34 mi (1,041.80 km) |
| Nailsea to Obertraubling | 680.47 mi (1,095.12 km) |
| Nailsea to Obertshausen | 514.93 mi (828.70 km) |
| Nailsea to Oberursel | 501.57 mi (807.20 km) |
| Nailsea to Ochsenfurt | 575.70 mi (926.51 km) |
| Nailsea to Ochsenhausen | 611.90 mi (984.76 km) |
| Nailsea to Ochtrup | 428.01 mi (688.81 km) |
| Nailsea to Odenthal | 427.86 mi (688.58 km) |
| Nailsea to Oelde | 468.29 mi (753.64 km) |
| Nailsea to Oelsnitz | 652.72 mi (1,050.45 km) |
| Nailsea to Oer-Erkenschwick | 430.15 mi (692.26 km) |
