| Middelharnis to Oegstgeest | 32.49 mi (52.29 km) |
| Middelharnis to Oirschot | 51.45 mi (82.81 km) |
| Middelharnis to Oisterwijk | 45.62 mi (73.41 km) |
| Middelharnis to Oldebroek | 87.92 mi (141.49 km) |
| Middelharnis to Oldenzaal | 123.80 mi (199.24 km) |
| Middelharnis to Ommen | 109.01 mi (175.44 km) |
| Middelharnis to Oosterend | 117.89 mi (189.73 km) |
| Middelharnis to Oosterhout | 30.33 mi (48.81 km) |
| Middelharnis to Oosterwolde | 123.90 mi (199.39 km) |
| Middelharnis to Oostzaan | 56.09 mi (90.26 km) |
| Middelharnis to Opmeer | 73.47 mi (118.24 km) |
| Middelharnis to Oss | 57.61 mi (92.71 km) |
| Middelharnis to Oud-Beijerland | 10.86 mi (17.47 km) |
| Middelharnis to Oudenbosch | 18.80 mi (30.25 km) |
| Middelharnis to Oudewater | 34.96 mi (56.27 km) |
