| Rathfarnham to Oegstgeest | 455.86 mi (733.64 km) |
| Rathfarnham to Oirschot | 503.35 mi (810.07 km) |
| Rathfarnham to Oisterwijk | 497.45 mi (800.56 km) |
| Rathfarnham to Oldebroek | 510.90 mi (822.21 km) |
| Rathfarnham to Oldenzaal | 555.44 mi (893.89 km) |
| Rathfarnham to Ommen | 531.34 mi (855.11 km) |
| Rathfarnham to Oosterend | 511.57 mi (823.30 km) |
| Rathfarnham to Oosterhout | 482.17 mi (775.98 km) |
| Rathfarnham to Oosterwolde | 520.97 mi (838.42 km) |
| Rathfarnham to Oostzaan | 469.18 mi (755.07 km) |
| Rathfarnham to Opmeer | 468.53 mi (754.02 km) |
| Rathfarnham to Oss | 506.58 mi (815.27 km) |
| Rathfarnham to Oud-Beijerland | 459.91 mi (740.15 km) |
| Rathfarnham to Oudenbosch | 469.80 mi (756.07 km) |
| Rathfarnham to Oudewater | 475.19 mi (764.75 km) |
