| Walton upon Thames to Nuth | 274.73 mi (442.14 km) |
| Walton upon Thames to Oegstgeest | 215.67 mi (347.09 km) |
| Walton upon Thames to Oirschot | 246.10 mi (396.07 km) |
| Walton upon Thames to Oisterwijk | 241.84 mi (389.20 km) |
| Walton upon Thames to Oldebroek | 278.79 mi (448.67 km) |
| Walton upon Thames to Oldenzaal | 319.91 mi (514.84 km) |
| Walton upon Thames to Ommen | 301.01 mi (484.43 km) |
| Walton upon Thames to Oosterend | 296.16 mi (476.62 km) |
| Walton upon Thames to Oosterhout | 227.25 mi (365.72 km) |
| Walton upon Thames to Oosterwolde | 304.70 mi (490.37 km) |
| Walton upon Thames to Oostzaan | 236.99 mi (381.40 km) |
| Walton upon Thames to Opmeer | 245.24 mi (394.68 km) |
| Walton upon Thames to Oss | 255.91 mi (411.84 km) |
| Walton upon Thames to Oud-Beijerland | 208.65 mi (335.79 km) |
| Walton upon Thames to Oudenbosch | 212.83 mi (342.52 km) |
