| Passau to Oberkirch | 246.08 mi (396.02 km) |
| Passau to Obernburg am Main | 213.81 mi (344.09 km) |
| Passau to Obernkirchen | 318.77 mi (513.01 km) |
| Passau to Oberschleissheim | 89.88 mi (144.65 km) |
| Passau to Oberstdorf | 167.83 mi (270.09 km) |
| Passau to Obertraubling | 64.99 mi (104.59 km) |
| Passau to Obertshausen | 232.62 mi (374.37 km) |
| Passau to Oberursel | 246.89 mi (397.34 km) |
| Passau to Ochsenfurt | 170.69 mi (274.69 km) |
| Passau to Ochsenhausen | 165.23 mi (265.91 km) |
| Passau to Ochtrup | 373.04 mi (600.35 km) |
| Passau to Odenthal | 329.98 mi (531.05 km) |
| Passau to Oelde | 325.33 mi (523.57 km) |
| Passau to Oelsnitz | 139.98 mi (225.28 km) |
| Passau to Oer-Erkenschwick | 347.29 mi (558.90 km) |
