| Osterode to Oerlinghausen | 69.64 mi (112.08 km) |
| Osterode to Oestrich-Winkel | 154.62 mi (248.83 km) |
| Osterode to Offenburg | 247.67 mi (398.59 km) |
| Osterode to Oftersheim | 178.60 mi (287.43 km) |
| Osterode to Ohrdruf | 65.59 mi (105.56 km) |
| Osterode to Ohringen | 177.81 mi (286.16 km) |
| Osterode to Olbernhau | 152.23 mi (244.99 km) |
| Osterode to Olching | 248.34 mi (399.67 km) |
| Osterode to Oldenburg | 130.12 mi (209.41 km) |
| Osterode to Oldenburg in Holstein | 179.59 mi (289.02 km) |
| Osterode to Olfen | 122.79 mi (197.61 km) |
| Osterode to Olpe | 115.34 mi (185.62 km) |
| Osterode to Olsberg | 80.39 mi (129.38 km) |
| Osterode to Oranienburg | 144.79 mi (233.02 km) |
| Osterode to Ortenberg | 108.16 mi (174.07 km) |
