| Merthyr Tudful to Minervino Murge | 1,176.83 mi (1,893.93 km) |
| Merthyr Tudful to Minturno | 1,084.81 mi (1,745.83 km) |
| Merthyr Tudful to Mira | 829.52 mi (1,334.98 km) |
| Merthyr Tudful to Mirandola | 813.05 mi (1,308.47 km) |
| Merthyr Tudful to Mirano | 825.64 mi (1,328.74 km) |
| Merthyr Tudful to Misano Adriatico | 915.61 mi (1,473.53 km) |
| Merthyr Tudful to Misilmeri | 1,249.20 mi (2,010.40 km) |
| Merthyr Tudful to Missaglia | 712.56 mi (1,146.76 km) |
| Merthyr Tudful to Misterbianco | 1,327.84 mi (2,136.95 km) |
| Merthyr Tudful to Modena | 818.89 mi (1,317.88 km) |
| Merthyr Tudful to Modica | 1,356.49 mi (2,183.06 km) |
| Merthyr Tudful to Modugno | 1,203.48 mi (1,936.81 km) |
| Merthyr Tudful to Mogliano Veneto | 828.36 mi (1,333.12 km) |
| Merthyr Tudful to Molfetta | 1,191.02 mi (1,916.77 km) |
| Merthyr Tudful to Molinella | 847.58 mi (1,364.04 km) |
