| Sint-Lievens-Houtem to Oestrich-Winkel | 192.50 mi (309.80 km) |
| Sint-Lievens-Houtem to Offenburg | 248.31 mi (399.62 km) |
| Sint-Lievens-Houtem to Oftersheim | 234.58 mi (377.52 km) |
| Sint-Lievens-Houtem to Ohrdruf | 299.33 mi (481.72 km) |
| Sint-Lievens-Houtem to Ohringen | 276.51 mi (445.00 km) |
| Sint-Lievens-Houtem to Olbernhau | 413.55 mi (665.54 km) |
| Sint-Lievens-Houtem to Olching | 382.79 mi (616.04 km) |
| Sint-Lievens-Houtem to Oldenburg | 240.40 mi (386.89 km) |
| Sint-Lievens-Houtem to Oldenburg in Holstein | 375.62 mi (604.51 km) |
| Sint-Lievens-Houtem to Olfen | 161.59 mi (260.05 km) |
| Sint-Lievens-Houtem to Olpe | 172.72 mi (277.96 km) |
| Sint-Lievens-Houtem to Olsberg | 202.35 mi (325.65 km) |
| Sint-Lievens-Houtem to Oranienburg | 419.36 mi (674.90 km) |
| Sint-Lievens-Houtem to Ortenberg | 230.60 mi (371.12 km) |
| Sint-Lievens-Houtem to Oschatz | 401.46 mi (646.09 km) |
