| Merthyr Tudful to Deventer | 406.55 mi (654.28 km) |
| Merthyr Tudful to Diemen | 356.80 mi (574.21 km) |
| Merthyr Tudful to Doesburg | 405.83 mi (653.12 km) |
| Merthyr Tudful to Doetinchem | 413.00 mi (664.66 km) |
| Merthyr Tudful to Dokkum | 408.63 mi (657.63 km) |
| Merthyr Tudful to Dongen | 355.89 mi (572.75 km) |
| Merthyr Tudful to Doorn | 372.51 mi (599.50 km) |
| Merthyr Tudful to Dordrecht | 344.31 mi (554.11 km) |
| Merthyr Tudful to Drachten | 409.89 mi (659.66 km) |
| Merthyr Tudful to Drimmelen | 349.94 mi (563.18 km) |
| Merthyr Tudful to Dronten | 389.17 mi (626.30 km) |
| Merthyr Tudful to Druten | 383.38 mi (616.99 km) |
| Merthyr Tudful to Duiven | 401.68 mi (646.45 km) |
| Merthyr Tudful to Echt | 401.22 mi (645.70 km) |
| Merthyr Tudful to Edam | 361.23 mi (581.34 km) |
