| Dorohoi to Oerlinghausen | 832.84 mi (1,340.32 km) |
| Dorohoi to Oestrich-Winkel | 843.97 mi (1,358.24 km) |
| Dorohoi to Offenburg | 848.87 mi (1,366.12 km) |
| Dorohoi to Oftersheim | 816.84 mi (1,314.58 km) |
| Dorohoi to Ohrdruf | 730.30 mi (1,175.30 km) |
| Dorohoi to Ohringen | 775.59 mi (1,248.19 km) |
| Dorohoi to Olbernhau | 616.60 mi (992.32 km) |
| Dorohoi to Olching | 695.32 mi (1,119.02 km) |
| Dorohoi to Oldenburg | 871.86 mi (1,403.12 km) |
| Dorohoi to Oldenburg in Holstein | 800.18 mi (1,287.76 km) |
| Dorohoi to Olfen | 883.33 mi (1,421.58 km) |
| Dorohoi to Olpe | 857.13 mi (1,379.42 km) |
| Dorohoi to Olsberg | 832.53 mi (1,339.83 km) |
| Dorohoi to Oranienburg | 666.70 mi (1,072.95 km) |
| Dorohoi to Ortenberg | 799.05 mi (1,285.95 km) |
