| Komotini to Oegstgeest | 1,246.90 mi (2,006.69 km) |
| Komotini to Oirschot | 1,192.75 mi (1,919.54 km) |
| Komotini to Oisterwijk | 1,199.31 mi (1,930.10 km) |
| Komotini to Oldebroek | 1,204.66 mi (1,938.71 km) |
| Komotini to Oldenzaal | 1,163.28 mi (1,872.11 km) |
| Komotini to Ommen | 1,189.05 mi (1,913.59 km) |
| Komotini to Oosterend | 1,220.11 mi (1,963.57 km) |
| Komotini to Oosterhout | 1,214.19 mi (1,954.04 km) |
| Komotini to Oosterwolde | 1,211.90 mi (1,950.36 km) |
| Komotini to Oostzaan | 1,240.41 mi (1,996.24 km) |
| Komotini to Opmeer | 1,247.61 mi (2,007.83 km) |
| Komotini to Oss | 1,193.81 mi (1,921.25 km) |
| Komotini to Oud-Beijerland | 1,237.09 mi (1,990.91 km) |
| Komotini to Oudenbosch | 1,224.98 mi (1,971.41 km) |
| Komotini to Oudewater | 1,226.45 mi (1,973.78 km) |
