| Piraeus to Mendicino | 412.47 mi (663.80 km) |
| Piraeus to Menfi | 583.31 mi (938.75 km) |
| Piraeus to Mentana | 646.01 mi (1,039.65 km) |
| Piraeus to Merano | 875.92 mi (1,409.65 km) |
| Piraeus to Merate | 904.91 mi (1,456.31 km) |
| Piraeus to Mercato San Severino | 513.05 mi (825.67 km) |
| Piraeus to Mercogliano | 517.54 mi (832.90 km) |
| Piraeus to Mesagne | 361.43 mi (581.67 km) |
| Piraeus to Messina | 440.41 mi (708.77 km) |
| Piraeus to Mestre | 784.83 mi (1,263.07 km) |
| Piraeus to Mestrino | 801.42 mi (1,289.76 km) |
| Piraeus to Milan | 906.84 mi (1,459.42 km) |
| Piraeus to Milazzo | 457.62 mi (736.47 km) |
| Piraeus to Minerbio | 781.13 mi (1,257.10 km) |
| Piraeus to Minervino Murge | 458.11 mi (737.26 km) |
