| Rehburg-Loccum to Oberkirch | 275.14 mi (442.79 km) |
| Rehburg-Loccum to Obernburg am Main | 180.41 mi (290.34 km) |
| Rehburg-Loccum to Obernkirchen | 13.29 mi (21.40 km) |
| Rehburg-Loccum to Oberschleissheim | 308.27 mi (496.12 km) |
| Rehburg-Loccum to Oberstdorf | 351.54 mi (565.75 km) |
| Rehburg-Loccum to Obertraubling | 273.34 mi (439.89 km) |
| Rehburg-Loccum to Obertshausen | 165.52 mi (266.38 km) |
| Rehburg-Loccum to Oberursel | 157.66 mi (253.72 km) |
| Rehburg-Loccum to Ochsenfurt | 197.08 mi (317.16 km) |
| Rehburg-Loccum to Ochsenhausen | 304.29 mi (489.71 km) |
| Rehburg-Loccum to Ochtrup | 86.86 mi (139.78 km) |
| Rehburg-Loccum to Odenthal | 132.64 mi (213.46 km) |
| Rehburg-Loccum to Oelde | 61.90 mi (99.62 km) |
| Rehburg-Loccum to Oelsnitz | 189.70 mi (305.28 km) |
| Rehburg-Loccum to Oer-Erkenschwick | 100.18 mi (161.22 km) |
