| Hoddesdon to Oerlinghausen | 370.49 mi (596.25 km) |
| Hoddesdon to Oestrich-Winkel | 369.71 mi (594.99 km) |
| Hoddesdon to Offenburg | 418.90 mi (674.15 km) |
| Hoddesdon to Oftersheim | 411.60 mi (662.40 km) |
| Hoddesdon to Ohrdruf | 468.36 mi (753.76 km) |
| Hoddesdon to Ohringen | 453.75 mi (730.23 km) |
| Hoddesdon to Olbernhau | 581.81 mi (936.34 km) |
| Hoddesdon to Olching | 559.51 mi (900.44 km) |
| Hoddesdon to Oldenburg | 359.24 mi (578.14 km) |
| Hoddesdon to Oldenburg in Holstein | 485.07 mi (780.65 km) |
| Hoddesdon to Olfen | 316.43 mi (509.24 km) |
| Hoddesdon to Olpe | 342.09 mi (550.54 km) |
| Hoddesdon to Olsberg | 365.97 mi (588.97 km) |
| Hoddesdon to Oranienburg | 563.86 mi (907.44 km) |
| Hoddesdon to Ortenberg | 405.37 mi (652.37 km) |
