| Piraeus to Monticello Conte Otto | 814.70 mi (1,311.14 km) |
| Piraeus to Montichiari | 855.18 mi (1,376.27 km) |
| Piraeus to Montignoso | 817.33 mi (1,315.36 km) |
| Piraeus to Montopoli in Val d'Arno | 780.58 mi (1,256.22 km) |
| Piraeus to Monza | 907.40 mi (1,460.32 km) |
| Piraeus to Morbegno | 915.45 mi (1,473.28 km) |
| Piraeus to Mori | 848.27 mi (1,365.16 km) |
| Piraeus to Morlupo | 656.24 mi (1,056.11 km) |
| Piraeus to Morrovalle | 644.49 mi (1,037.21 km) |
| Piraeus to Mortara | 918.26 mi (1,477.79 km) |
| Piraeus to Mosciano Sant'Angelo | 611.47 mi (984.06 km) |
| Piraeus to Motta di Livenza | 783.36 mi (1,260.70 km) |
| Piraeus to Motta Sant'Anastasia | 475.21 mi (764.77 km) |
| Piraeus to Mottola | 399.39 mi (642.75 km) |
| Piraeus to Mozzate | 924.37 mi (1,487.63 km) |
