| Dobrich to Oegstgeest | 1,227.94 mi (1,976.19 km) |
| Dobrich to Oirschot | 1,178.78 mi (1,897.07 km) |
| Dobrich to Oisterwijk | 1,184.71 mi (1,906.61 km) |
| Dobrich to Oldebroek | 1,178.14 mi (1,896.03 km) |
| Dobrich to Oldenzaal | 1,134.46 mi (1,825.74 km) |
| Dobrich to Ommen | 1,159.96 mi (1,866.77 km) |
| Dobrich to Oosterend | 1,187.06 mi (1,910.39 km) |
| Dobrich to Oosterhout | 1,199.98 mi (1,931.18 km) |
| Dobrich to Oosterwolde | 1,178.18 mi (1,896.10 km) |
| Dobrich to Oostzaan | 1,217.46 mi (1,959.31 km) |
| Dobrich to Opmeer | 1,221.60 mi (1,965.97 km) |
| Dobrich to Oss | 1,176.14 mi (1,892.81 km) |
| Dobrich to Oud-Beijerland | 1,222.33 mi (1,967.16 km) |
| Dobrich to Oudenbosch | 1,212.37 mi (1,951.12 km) |
| Dobrich to Oudewater | 1,208.08 mi (1,944.21 km) |
