| Walcourt to Obernburg am Main | 211.51 mi (340.39 km) |
| Walcourt to Obernkirchen | 246.36 mi (396.47 km) |
| Walcourt to Oberschleissheim | 350.65 mi (564.31 km) |
| Walcourt to Oberstdorf | 330.92 mi (532.56 km) |
| Walcourt to Obertraubling | 357.98 mi (576.12 km) |
| Walcourt to Obertshausen | 195.89 mi (315.25 km) |
| Walcourt to Oberursel | 183.90 mi (295.95 km) |
| Walcourt to Ochsenfurt | 254.52 mi (409.62 km) |
| Walcourt to Ochsenhausen | 291.61 mi (469.30 km) |
| Walcourt to Ochtrup | 180.69 mi (290.79 km) |
| Walcourt to Odenthal | 130.09 mi (209.35 km) |
| Walcourt to Oelde | 195.59 mi (314.78 km) |
| Walcourt to Oelsnitz | 341.84 mi (550.14 km) |
| Walcourt to Oer-Erkenschwick | 156.42 mi (251.74 km) |
| Walcourt to Oerlinghausen | 219.17 mi (352.72 km) |
