| Allen to Nuth | 4,973.99 mi (8,004.87 km) |
| Allen to Oegstgeest | 4,877.49 mi (7,849.56 km) |
| Allen to Oirschot | 4,931.81 mi (7,936.98 km) |
| Allen to Oisterwijk | 4,925.20 mi (7,926.35 km) |
| Allen to Oldebroek | 4,920.84 mi (7,919.32 km) |
| Allen to Oldenzaal | 4,963.02 mi (7,987.21 km) |
| Allen to Ommen | 4,937.24 mi (7,945.73 km) |
| Allen to Oosterend | 4,907.58 mi (7,897.98 km) |
| Allen to Oosterhout | 4,910.39 mi (7,902.50 km) |
| Allen to Oosterwolde | 4,916.12 mi (7,911.73 km) |
| Allen to Oostzaan | 4,884.31 mi (7,860.53 km) |
| Allen to Opmeer | 4,877.65 mi (7,849.82 km) |
| Allen to Oss | 4,930.58 mi (7,935.00 km) |
| Allen to Oud-Beijerland | 4,887.46 mi (7,865.61 km) |
| Allen to Oudenbosch | 4,899.82 mi (7,885.50 km) |
