| Brandenburg to Oestrich-Winkel | 257.57 mi (414.52 km) |
| Brandenburg to Offenburg | 339.64 mi (546.60 km) |
| Brandenburg to Oftersheim | 271.78 mi (437.38 km) |
| Brandenburg to Ohrdruf | 134.20 mi (215.98 km) |
| Brandenburg to Ohringen | 258.67 mi (416.28 km) |
| Brandenburg to Olbernhau | 125.70 mi (202.30 km) |
| Brandenburg to Olching | 296.24 mi (476.75 km) |
| Brandenburg to Oldenburg | 187.35 mi (301.51 km) |
| Brandenburg to Oldenburg in Holstein | 146.83 mi (236.30 km) |
| Brandenburg to Olfen | 223.98 mi (360.45 km) |
| Brandenburg to Olpe | 223.18 mi (359.17 km) |
| Brandenburg to Olsberg | 187.76 mi (302.17 km) |
| Brandenburg to Oranienburg | 37.64 mi (60.58 km) |
| Brandenburg to Ortenberg | 206.76 mi (332.74 km) |
| Brandenburg to Oschatz | 80.93 mi (130.24 km) |
