| Herenthout to Oegstgeest | 72.54 mi (116.75 km) |
| Herenthout to Oirschot | 33.39 mi (53.74 km) |
| Herenthout to Oisterwijk | 35.29 mi (56.80 km) |
| Herenthout to Oldebroek | 102.04 mi (164.22 km) |
| Herenthout to Oldenzaal | 122.85 mi (197.70 km) |
| Herenthout to Ommen | 117.81 mi (189.59 km) |
| Herenthout to Oosterend | 139.45 mi (224.43 km) |
| Herenthout to Oosterhout | 34.29 mi (55.19 km) |
| Herenthout to Oosterwolde | 142.68 mi (229.63 km) |
| Herenthout to Oostzaan | 88.81 mi (142.92 km) |
| Herenthout to Opmeer | 107.38 mi (172.81 km) |
| Herenthout to Oss | 53.46 mi (86.04 km) |
| Herenthout to Oud-Beijerland | 48.69 mi (78.36 km) |
| Herenthout to Oudenbosch | 32.10 mi (51.66 km) |
| Herenthout to Oudewater | 60.04 mi (96.62 km) |
