| Cay to Nuth | 1,487.18 mi (2,393.38 km) |
| Cay to Oegstgeest | 1,579.83 mi (2,542.49 km) |
| Cay to Oirschot | 1,527.27 mi (2,457.90 km) |
| Cay to Oisterwijk | 1,533.63 mi (2,468.14 km) |
| Cay to Oldebroek | 1,534.44 mi (2,469.45 km) |
| Cay to Oldenzaal | 1,491.92 mi (2,401.01 km) |
| Cay to Ommen | 1,517.68 mi (2,442.46 km) |
| Cay to Oosterend | 1,547.09 mi (2,489.81 km) |
| Cay to Oosterhout | 1,548.70 mi (2,492.39 km) |
| Cay to Oosterwolde | 1,538.54 mi (2,476.05 km) |
| Cay to Oostzaan | 1,571.78 mi (2,529.53 km) |
| Cay to Opmeer | 1,577.76 mi (2,539.17 km) |
| Cay to Oss | 1,527.02 mi (2,457.50 km) |
| Cay to Oud-Beijerland | 1,571.50 mi (2,529.08 km) |
| Cay to Oudenbosch | 1,560.07 mi (2,510.69 km) |
