| Walcourt to Oestrich-Winkel | 159.65 mi (256.93 km) |
| Walcourt to Offenburg | 200.53 mi (322.72 km) |
| Walcourt to Oftersheim | 195.49 mi (314.61 km) |
| Walcourt to Ohrdruf | 280.13 mi (450.82 km) |
| Walcourt to Ohringen | 238.30 mi (383.51 km) |
| Walcourt to Olbernhau | 393.03 mi (632.53 km) |
| Walcourt to Olching | 341.89 mi (550.21 km) |
| Walcourt to Oldenburg | 257.65 mi (414.65 km) |
| Walcourt to Oldenburg in Holstein | 390.90 mi (629.10 km) |
| Walcourt to Olfen | 164.05 mi (264.02 km) |
| Walcourt to Olpe | 158.81 mi (255.58 km) |
| Walcourt to Olsberg | 193.13 mi (310.81 km) |
| Walcourt to Oranienburg | 416.59 mi (670.43 km) |
| Walcourt to Ortenberg | 204.81 mi (329.61 km) |
| Walcourt to Oschatz | 386.34 mi (621.75 km) |
