| Abertillery to Nuth | 392.95 mi (632.40 km) |
| Abertillery to Oegstgeest | 324.82 mi (522.75 km) |
| Abertillery to Oirschot | 361.82 mi (582.29 km) |
| Abertillery to Oisterwijk | 357.00 mi (574.54 km) |
| Abertillery to Oldebroek | 386.30 mi (621.69 km) |
| Abertillery to Oldenzaal | 429.41 mi (691.08 km) |
| Abertillery to Ommen | 408.30 mi (657.10 km) |
| Abertillery to Oosterend | 397.54 mi (639.77 km) |
| Abertillery to Oosterhout | 342.00 mi (550.40 km) |
| Abertillery to Oosterwolde | 406.64 mi (654.42 km) |
| Abertillery to Oostzaan | 343.52 mi (552.84 km) |
| Abertillery to Opmeer | 348.36 mi (560.63 km) |
| Abertillery to Oss | 369.67 mi (594.93 km) |
| Abertillery to Oud-Beijerland | 321.84 mi (517.96 km) |
| Abertillery to Oudenbosch | 328.05 mi (527.94 km) |
