| Merthyr Tudful to Dobrova | 895.57 mi (1,441.27 km) |
| Merthyr Tudful to Dobrovnik | 953.85 mi (1,535.07 km) |
| Merthyr Tudful to Dobrovo | 862.01 mi (1,387.28 km) |
| Merthyr Tudful to Dol | 903.51 mi (1,454.06 km) |
| Merthyr Tudful to Dolenjske Toplice | 932.77 mi (1,501.15 km) |
| Merthyr Tudful to Domzale | 899.71 mi (1,447.94 km) |
| Merthyr Tudful to Dornava | 944.83 mi (1,520.56 km) |
| Merthyr Tudful to Dragomer | 895.53 mi (1,441.22 km) |
| Merthyr Tudful to Dravograd | 901.18 mi (1,450.31 km) |
| Merthyr Tudful to Gorenja Vas | 882.69 mi (1,420.55 km) |
| Merthyr Tudful to Gorisnica | 948.10 mi (1,525.82 km) |
| Merthyr Tudful to Gornja Radgona | 938.31 mi (1,510.07 km) |
| Merthyr Tudful to Gornji Grad | 902.59 mi (1,452.57 km) |
| Merthyr Tudful to Gornji Petrovci | 943.34 mi (1,518.15 km) |
| Merthyr Tudful to Grad | 938.63 mi (1,510.59 km) |
