| Regensdorf to Oberkirch | 78.04 mi (125.60 km) |
| Regensdorf to Obernburg am Main | 169.11 mi (272.16 km) |
| Regensdorf to Obernkirchen | 335.19 mi (539.43 km) |
| Regensdorf to Oberschleissheim | 154.42 mi (248.52 km) |
| Regensdorf to Oberstdorf | 84.75 mi (136.38 km) |
| Regensdorf to Obertraubling | 200.59 mi (322.82 km) |
| Regensdorf to Obertshausen | 182.71 mi (294.05 km) |
| Regensdorf to Oberursel | 191.45 mi (308.12 km) |
| Regensdorf to Ochsenfurt | 169.74 mi (273.17 km) |
| Regensdorf to Ochsenhausen | 81.76 mi (131.57 km) |
| Regensdorf to Ochtrup | 334.59 mi (538.48 km) |
| Regensdorf to Odenthal | 256.07 mi (412.11 km) |
| Regensdorf to Oelde | 304.34 mi (489.79 km) |
| Regensdorf to Oelsnitz | 265.83 mi (427.82 km) |
| Regensdorf to Oer-Erkenschwick | 295.86 mi (476.14 km) |
