| Osterburg to Oerlinghausen | 142.40 mi (229.17 km) |
| Osterburg to Oestrich-Winkel | 251.63 mi (404.96 km) |
| Osterburg to Offenburg | 342.21 mi (550.73 km) |
| Osterburg to Oftersheim | 273.21 mi (439.69 km) |
| Osterburg to Ohrdruf | 142.13 mi (228.73 km) |
| Osterburg to Ohringen | 266.45 mi (428.81 km) |
| Osterburg to Olbernhau | 160.87 mi (258.90 km) |
| Osterburg to Olching | 317.29 mi (510.63 km) |
| Osterburg to Oldenburg | 149.92 mi (241.28 km) |
| Osterburg to Oldenburg in Holstein | 110.89 mi (178.46 km) |
| Osterburg to Olfen | 199.49 mi (321.04 km) |
| Osterburg to Olpe | 207.36 mi (333.72 km) |
| Osterburg to Olsberg | 171.02 mi (275.23 km) |
| Osterburg to Oranienburg | 61.49 mi (98.96 km) |
| Osterburg to Ortenberg | 204.15 mi (328.55 km) |
