| Ottendorf-Okrilla to Oberkirch | 314.27 mi (505.78 km) |
| Ottendorf-Okrilla to Obernburg am Main | 225.63 mi (363.12 km) |
| Ottendorf-Okrilla to Obernkirchen | 215.02 mi (346.03 km) |
| Ottendorf-Okrilla to Oberschleissheim | 226.14 mi (363.93 km) |
| Ottendorf-Okrilla to Oberstdorf | 305.49 mi (491.64 km) |
| Ottendorf-Okrilla to Obertraubling | 169.70 mi (273.10 km) |
| Ottendorf-Okrilla to Obertshausen | 231.90 mi (373.21 km) |
| Ottendorf-Okrilla to Oberursel | 239.39 mi (385.26 km) |
| Ottendorf-Okrilla to Ochsenfurt | 196.33 mi (315.96 km) |
| Ottendorf-Okrilla to Ochsenhausen | 275.98 mi (444.15 km) |
| Ottendorf-Okrilla to Ochtrup | 292.81 mi (471.23 km) |
| Ottendorf-Okrilla to Odenthal | 291.14 mi (468.55 km) |
| Ottendorf-Okrilla to Oelde | 248.19 mi (399.42 km) |
| Ottendorf-Okrilla to Oelsnitz | 89.59 mi (144.18 km) |
| Ottendorf-Okrilla to Oer-Erkenschwick | 285.07 mi (458.77 km) |
