| Merthyr Tudful to Dabrowa Gornicza | 981.43 mi (1,579.46 km) |
| Merthyr Tudful to Dabrowa Tarnowska | 1,060.88 mi (1,707.32 km) |
| Merthyr Tudful to Darlowo | 838.81 mi (1,349.93 km) |
| Merthyr Tudful to Debica | 1,081.54 mi (1,740.57 km) |
| Merthyr Tudful to Deblin | 1,076.55 mi (1,732.54 km) |
| Merthyr Tudful to Debno | 765.92 mi (1,232.63 km) |
| Merthyr Tudful to Dobre Miasto | 998.80 mi (1,607.42 km) |
| Merthyr Tudful to Drawsko Pomorskie | 811.02 mi (1,305.22 km) |
| Merthyr Tudful to Drezdenko | 812.98 mi (1,308.36 km) |
| Merthyr Tudful to Dzialdowo | 992.06 mi (1,596.56 km) |
| Merthyr Tudful to Dzierzoniow | 866.56 mi (1,394.59 km) |
| Merthyr Tudful to Elblag | 958.44 mi (1,542.45 km) |
| Merthyr Tudful to Elk | 1,079.17 mi (1,736.75 km) |
| Merthyr Tudful to Garwolin | 1,062.95 mi (1,710.66 km) |
| Merthyr Tudful to Gdansk | 928.30 mi (1,493.96 km) |
