| Adrian to Nuth | 4,058.30 mi (6,531.20 km) |
| Adrian to Oegstgeest | 3,962.90 mi (6,377.67 km) |
| Adrian to Oirschot | 4,016.62 mi (6,464.13 km) |
| Adrian to Oisterwijk | 4,010.09 mi (6,453.61 km) |
| Adrian to Oldebroek | 4,007.48 mi (6,449.42 km) |
| Adrian to Oldenzaal | 4,050.06 mi (6,517.95 km) |
| Adrian to Ommen | 4,024.32 mi (6,476.52 km) |
| Adrian to Oosterend | 3,995.33 mi (6,429.86 km) |
| Adrian to Oosterhout | 3,995.18 mi (6,429.63 km) |
| Adrian to Oosterwolde | 4,003.99 mi (6,443.80 km) |
| Adrian to Oostzaan | 3,970.34 mi (6,389.64 km) |
| Adrian to Opmeer | 3,964.17 mi (6,379.72 km) |
| Adrian to Oss | 4,015.90 mi (6,462.96 km) |
| Adrian to Oud-Beijerland | 3,972.28 mi (6,392.77 km) |
| Adrian to Oudenbosch | 3,984.38 mi (6,412.24 km) |
