| Didymoteicho to Oberkirch | 1,024.61 mi (1,648.96 km) |
| Didymoteicho to Obernburg am Main | 1,019.96 mi (1,641.47 km) |
| Didymoteicho to Obernkirchen | 1,110.32 mi (1,786.89 km) |
| Didymoteicho to Oberschleissheim | 871.33 mi (1,402.28 km) |
| Didymoteicho to Oberstdorf | 901.39 mi (1,450.65 km) |
| Didymoteicho to Obertraubling | 871.99 mi (1,403.34 km) |
| Didymoteicho to Obertshausen | 1,039.48 mi (1,672.88 km) |
| Didymoteicho to Oberursel | 1,053.97 mi (1,696.20 km) |
| Didymoteicho to Ochsenfurt | 977.48 mi (1,573.10 km) |
| Didymoteicho to Ochsenhausen | 933.27 mi (1,501.95 km) |
| Didymoteicho to Ochtrup | 1,175.66 mi (1,892.05 km) |
| Didymoteicho to Odenthal | 1,137.60 mi (1,830.79 km) |
| Didymoteicho to Oelde | 1,127.43 mi (1,814.42 km) |
| Didymoteicho to Oelsnitz | 928.58 mi (1,494.40 km) |
| Didymoteicho to Oer-Erkenschwick | 1,153.27 mi (1,856.01 km) |
