| Ganserndorf to Obernburg am Main | 357.93 mi (576.03 km) |
| Ganserndorf to Obernkirchen | 430.96 mi (693.56 km) |
| Ganserndorf to Oberschleissheim | 236.81 mi (381.10 km) |
| Ganserndorf to Oberstdorf | 305.13 mi (491.06 km) |
| Ganserndorf to Obertraubling | 212.12 mi (341.37 km) |
| Ganserndorf to Obertshausen | 375.15 mi (603.75 km) |
| Ganserndorf to Oberursel | 388.66 mi (625.48 km) |
| Ganserndorf to Ochsenfurt | 314.66 mi (506.40 km) |
| Ganserndorf to Ochsenhausen | 312.16 mi (502.37 km) |
| Ganserndorf to Ochtrup | 497.71 mi (800.99 km) |
| Ganserndorf to Odenthal | 467.30 mi (752.05 km) |
| Ganserndorf to Oelde | 449.56 mi (723.49 km) |
| Ganserndorf to Oelsnitz | 249.89 mi (402.17 km) |
| Ganserndorf to Oer-Erkenschwick | 477.89 mi (769.09 km) |
| Ganserndorf to Oerlinghausen | 435.26 mi (700.48 km) |
