| Nailsea to Oerlinghausen | 490.23 mi (788.95 km) |
| Nailsea to Oestrich-Winkel | 480.52 mi (773.32 km) |
| Nailsea to Offenburg | 517.01 mi (832.05 km) |
| Nailsea to Oftersheim | 518.90 mi (835.08 km) |
| Nailsea to Ohrdruf | 585.70 mi (942.59 km) |
| Nailsea to Ohringen | 561.67 mi (903.92 km) |
| Nailsea to Olbernhau | 699.61 mi (1,125.91 km) |
| Nailsea to Olching | 664.80 mi (1,069.90 km) |
| Nailsea to Oldenburg | 478.16 mi (769.52 km) |
| Nailsea to Oldenburg in Holstein | 601.48 mi (967.99 km) |
| Nailsea to Olfen | 435.68 mi (701.15 km) |
| Nailsea to Olpe | 458.88 mi (738.50 km) |
| Nailsea to Olsberg | 484.31 mi (779.43 km) |
| Nailsea to Oranienburg | 683.76 mi (1,100.40 km) |
| Nailsea to Ortenberg | 519.67 mi (836.33 km) |
