| Republic to Oberkirch | 4,815.55 mi (7,749.88 km) |
| Republic to Obernburg am Main | 4,805.14 mi (7,733.12 km) |
| Republic to Obernkirchen | 4,711.81 mi (7,582.93 km) |
| Republic to Oberschleissheim | 4,958.04 mi (7,979.20 km) |
| Republic to Oberstdorf | 4,943.22 mi (7,955.35 km) |
| Republic to Obertraubling | 4,951.22 mi (7,968.22 km) |
| Republic to Obertshausen | 4,785.05 mi (7,700.79 km) |
| Republic to Oberursel | 4,770.37 mi (7,677.17 km) |
| Republic to Ochsenfurt | 4,846.69 mi (7,799.99 km) |
| Republic to Ochsenhausen | 4,904.32 mi (7,892.74 km) |
| Republic to Ochtrup | 4,645.24 mi (7,475.79 km) |
| Republic to Odenthal | 4,685.50 mi (7,540.59 km) |
| Republic to Oelde | 4,693.48 mi (7,553.42 km) |
| Republic to Oelsnitz | 4,892.54 mi (7,873.78 km) |
| Republic to Oer-Erkenschwick | 4,668.03 mi (7,512.46 km) |
