| Wassenaar to Oberkirch | 297.95 mi (479.50 km) |
| Wassenaar to Obernburg am Main | 260.65 mi (419.48 km) |
| Wassenaar to Obernkirchen | 199.88 mi (321.67 km) |
| Wassenaar to Oberschleissheim | 415.68 mi (668.98 km) |
| Wassenaar to Oberstdorf | 419.33 mi (674.84 km) |
| Wassenaar to Obertraubling | 405.42 mi (652.46 km) |
| Wassenaar to Obertshausen | 240.15 mi (386.48 km) |
| Wassenaar to Oberursel | 225.39 mi (362.73 km) |
| Wassenaar to Ochsenfurt | 301.21 mi (484.75 km) |
| Wassenaar to Ochsenhausen | 373.70 mi (601.42 km) |
| Wassenaar to Ochtrup | 118.28 mi (190.35 km) |
| Wassenaar to Odenthal | 139.81 mi (225.01 km) |
| Wassenaar to Oelde | 161.02 mi (259.14 km) |
| Wassenaar to Oelsnitz | 356.15 mi (573.17 km) |
| Wassenaar to Oer-Erkenschwick | 126.50 mi (203.58 km) |
