| Dordrecht to Oerlinghausen | 170.50 mi (274.39 km) |
| Dordrecht to Oestrich-Winkel | 190.62 mi (306.77 km) |
| Dordrecht to Offenburg | 271.40 mi (436.78 km) |
| Dordrecht to Oftersheim | 239.62 mi (385.63 km) |
| Dordrecht to Ohrdruf | 269.81 mi (434.22 km) |
| Dordrecht to Ohringen | 277.52 mi (446.63 km) |
| Dordrecht to Olbernhau | 382.25 mi (615.17 km) |
| Dordrecht to Olching | 385.29 mi (620.06 km) |
| Dordrecht to Oldenburg | 175.53 mi (282.49 km) |
| Dordrecht to Oldenburg in Holstein | 310.24 mi (499.29 km) |
| Dordrecht to Olfen | 115.81 mi (186.38 km) |
| Dordrecht to Olpe | 146.23 mi (235.34 km) |
| Dordrecht to Olsberg | 166.25 mi (267.56 km) |
| Dordrecht to Oranienburg | 367.60 mi (591.60 km) |
| Dordrecht to Ortenberg | 214.43 mi (345.10 km) |
