| Rhondda to Marsala | 1,226.33 mi (1,973.58 km) |
| Rhondda to Marsciano | 948.71 mi (1,526.80 km) |
| Rhondda to Martano | 1,300.14 mi (2,092.37 km) |
| Rhondda to Martellago | 823.78 mi (1,325.75 km) |
| Rhondda to Martina Franca | 1,239.67 mi (1,995.06 km) |
| Rhondda to Martinengo | 731.42 mi (1,177.11 km) |
| Rhondda to Martinsicuro | 1,008.22 mi (1,622.57 km) |
| Rhondda to Mascali | 1,317.03 mi (2,119.56 km) |
| Rhondda to Mascalucia | 1,322.18 mi (2,127.84 km) |
| Rhondda to Masera di Padova | 822.02 mi (1,322.91 km) |
| Rhondda to Maserada sul Piave | 821.83 mi (1,322.61 km) |
| Rhondda to Massa | 816.05 mi (1,313.30 km) |
| Rhondda to Massa Lombarda | 857.85 mi (1,380.58 km) |
| Rhondda to Massafra | 1,237.26 mi (1,991.18 km) |
| Rhondda to Massalubrense | 1,135.45 mi (1,827.33 km) |
