| Geesthacht to Obernburg am Main | 254.05 mi (408.86 km) |
| Geesthacht to Obernkirchen | 96.26 mi (154.91 km) |
| Geesthacht to Oberschleissheim | 362.21 mi (582.91 km) |
| Geesthacht to Oberstdorf | 416.50 mi (670.29 km) |
| Geesthacht to Obertraubling | 318.61 mi (512.75 km) |
| Geesthacht to Obertshausen | 241.95 mi (389.39 km) |
| Geesthacht to Oberursel | 236.17 mi (380.07 km) |
| Geesthacht to Ochsenfurt | 262.01 mi (421.66 km) |
| Geesthacht to Ochsenhausen | 371.16 mi (597.32 km) |
| Geesthacht to Ochtrup | 157.59 mi (253.62 km) |
| Geesthacht to Odenthal | 215.63 mi (347.02 km) |
| Geesthacht to Oelde | 144.66 mi (232.81 km) |
| Geesthacht to Oelsnitz | 222.33 mi (357.81 km) |
| Geesthacht to Oer-Erkenschwick | 180.36 mi (290.26 km) |
| Geesthacht to Oerlinghausen | 124.08 mi (199.69 km) |
