| Rostock to Oberkirch | 421.31 mi (678.04 km) |
| Rostock to Obernburg am Main | 319.59 mi (514.33 km) |
| Rostock to Obernkirchen | 177.04 mi (284.92 km) |
| Rostock to Oberschleissheim | 403.79 mi (649.83 km) |
| Rostock to Oberstdorf | 468.13 mi (753.38 km) |
| Rostock to Obertraubling | 353.59 mi (569.04 km) |
| Rostock to Obertshausen | 310.81 mi (500.21 km) |
| Rostock to Oberursel | 307.49 mi (494.86 km) |
| Rostock to Ochsenfurt | 318.71 mi (512.92 km) |
| Rostock to Ochsenhausen | 425.97 mi (685.53 km) |
| Rostock to Ochtrup | 242.39 mi (390.09 km) |
| Rostock to Odenthal | 297.88 mi (479.39 km) |
| Rostock to Oelde | 227.21 mi (365.66 km) |
| Rostock to Oelsnitz | 253.34 mi (407.71 km) |
| Rostock to Oer-Erkenschwick | 264.33 mi (425.40 km) |
