| Agrinio to Oegstgeest | 1,240.20 mi (1,995.91 km) |
| Agrinio to Oirschot | 1,182.08 mi (1,902.38 km) |
| Agrinio to Oisterwijk | 1,189.14 mi (1,913.74 km) |
| Agrinio to Oldebroek | 1,209.66 mi (1,946.76 km) |
| Agrinio to Oldenzaal | 1,173.23 mi (1,888.13 km) |
| Agrinio to Ommen | 1,198.10 mi (1,928.16 km) |
| Agrinio to Oosterend | 1,232.79 mi (1,983.99 km) |
| Agrinio to Oosterhout | 1,202.81 mi (1,935.74 km) |
| Agrinio to Oosterwolde | 1,225.83 mi (1,972.78 km) |
| Agrinio to Oostzaan | 1,239.16 mi (1,994.24 km) |
| Agrinio to Opmeer | 1,250.00 mi (2,011.68 km) |
| Agrinio to Oss | 1,187.89 mi (1,911.73 km) |
| Agrinio to Oud-Beijerland | 1,225.39 mi (1,972.08 km) |
| Agrinio to Oudenbosch | 1,211.04 mi (1,948.97 km) |
| Agrinio to Oudewater | 1,219.91 mi (1,963.26 km) |
