| Wrecsam to Oerlinghausen | 495.42 mi (797.30 km) |
| Wrecsam to Oestrich-Winkel | 516.63 mi (831.44 km) |
| Wrecsam to Offenburg | 571.94 mi (920.45 km) |
| Wrecsam to Oftersheim | 560.93 mi (902.73 km) |
| Wrecsam to Ohrdruf | 603.39 mi (971.06 km) |
| Wrecsam to Ohringen | 602.34 mi (969.37 km) |
| Wrecsam to Olbernhau | 714.14 mi (1,149.30 km) |
| Wrecsam to Olching | 709.26 mi (1,141.45 km) |
| Wrecsam to Oldenburg | 464.55 mi (747.62 km) |
| Wrecsam to Oldenburg in Holstein | 573.57 mi (923.07 km) |
| Wrecsam to Olfen | 446.73 mi (718.94 km) |
| Wrecsam to Olpe | 480.55 mi (773.37 km) |
| Wrecsam to Olsberg | 499.35 mi (803.62 km) |
| Wrecsam to Oranienburg | 675.27 mi (1,086.75 km) |
| Wrecsam to Ortenberg | 547.58 mi (881.24 km) |
