| Ostermundigen to Oberkirch | 112.49 mi (181.03 km) |
| Ostermundigen to Obernburg am Main | 213.24 mi (343.18 km) |
| Ostermundigen to Obernkirchen | 374.13 mi (602.10 km) |
| Ostermundigen to Oberschleissheim | 209.93 mi (337.86 km) |
| Ostermundigen to Oberstdorf | 134.72 mi (216.80 km) |
| Ostermundigen to Obertraubling | 257.10 mi (413.77 km) |
| Ostermundigen to Obertshausen | 223.61 mi (359.87 km) |
| Ostermundigen to Oberursel | 229.87 mi (369.94 km) |
| Ostermundigen to Ochsenfurt | 220.66 mi (355.12 km) |
| Ostermundigen to Ochsenhausen | 138.28 mi (222.54 km) |
| Ostermundigen to Ochtrup | 363.03 mi (584.24 km) |
| Ostermundigen to Odenthal | 282.29 mi (454.30 km) |
| Ostermundigen to Oelde | 338.36 mi (544.54 km) |
| Ostermundigen to Oelsnitz | 320.38 mi (515.61 km) |
| Ostermundigen to Oer-Erkenschwick | 324.03 mi (521.48 km) |
