| Didymoteicho to Oerlinghausen | 1,114.12 mi (1,793.00 km) |
| Didymoteicho to Oestrich-Winkel | 1,070.06 mi (1,722.10 km) |
| Didymoteicho to Offenburg | 1,029.28 mi (1,656.46 km) |
| Didymoteicho to Oftersheim | 1,027.33 mi (1,653.33 km) |
| Didymoteicho to Ohrdruf | 996.15 mi (1,603.15 km) |
| Didymoteicho to Ohringen | 985.14 mi (1,585.43 km) |
| Didymoteicho to Olbernhau | 899.44 mi (1,447.51 km) |
| Didymoteicho to Olching | 879.98 mi (1,416.19 km) |
| Didymoteicho to Oldenburg | 1,176.66 mi (1,893.65 km) |
| Didymoteicho to Oldenburg in Holstein | 1,145.95 mi (1,844.23 km) |
| Didymoteicho to Olfen | 1,151.02 mi (1,852.39 km) |
| Didymoteicho to Olpe | 1,109.83 mi (1,786.10 km) |
| Didymoteicho to Olsberg | 1,097.47 mi (1,766.21 km) |
| Didymoteicho to Oranienburg | 1,002.02 mi (1,612.59 km) |
| Didymoteicho to Ortenberg | 1,040.70 mi (1,674.85 km) |
