| Wittenberge to Oerlinghausen | 148.07 mi (238.29 km) |
| Wittenberge to Oestrich-Winkel | 262.57 mi (422.56 km) |
| Wittenberge to Offenburg | 354.80 mi (570.99 km) |
| Wittenberge to Oftersheim | 285.72 mi (459.83 km) |
| Wittenberge to Ohrdruf | 156.20 mi (251.37 km) |
| Wittenberge to Ohringen | 280.08 mi (450.75 km) |
| Wittenberge to Olbernhau | 174.80 mi (281.32 km) |
| Wittenberge to Olching | 332.19 mi (534.61 km) |
| Wittenberge to Oldenburg | 147.11 mi (236.75 km) |
| Wittenberge to Oldenburg in Holstein | 96.58 mi (155.43 km) |
| Wittenberge to Olfen | 204.44 mi (329.01 km) |
| Wittenberge to Olpe | 215.65 mi (347.05 km) |
| Wittenberge to Olsberg | 179.29 mi (288.54 km) |
| Wittenberge to Oranienburg | 64.28 mi (103.45 km) |
| Wittenberge to Ortenberg | 216.08 mi (347.75 km) |
