| Osterode to Oberkirch | 240.74 mi (387.43 km) |
| Osterode to Obernburg am Main | 139.22 mi (224.05 km) |
| Osterode to Obernkirchen | 60.91 mi (98.02 km) |
| Osterode to Oberschleissheim | 247.33 mi (398.04 km) |
| Osterode to Oberstdorf | 298.41 mi (480.24 km) |
| Osterode to Obertraubling | 208.71 mi (335.88 km) |
| Osterode to Obertshausen | 130.41 mi (209.87 km) |
| Osterode to Oberursel | 128.14 mi (206.22 km) |
| Osterode to Ochsenfurt | 143.85 mi (231.50 km) |
| Osterode to Ochsenhausen | 252.99 mi (407.16 km) |
| Osterode to Ochtrup | 134.43 mi (216.35 km) |
| Osterode to Odenthal | 143.48 mi (230.91 km) |
| Osterode to Oelde | 90.15 mi (145.08 km) |
| Osterode to Oelsnitz | 122.97 mi (197.91 km) |
| Osterode to Oer-Erkenschwick | 128.70 mi (207.12 km) |
