| Ostrow Mazowiecka to Montevarchi | 796.43 mi (1,281.73 km) |
| Ostrow Mazowiecka to Monticello Conte Otto | 680.18 mi (1,094.65 km) |
| Ostrow Mazowiecka to Montichiari | 727.21 mi (1,170.33 km) |
| Ostrow Mazowiecka to Montignoso | 809.07 mi (1,302.08 km) |
| Ostrow Mazowiecka to Montopoli in Val d'Arno | 811.44 mi (1,305.88 km) |
| Ostrow Mazowiecka to Monza | 755.48 mi (1,215.83 km) |
| Ostrow Mazowiecka to Morbegno | 718.63 mi (1,156.52 km) |
| Ostrow Mazowiecka to Mori | 685.82 mi (1,103.72 km) |
| Ostrow Mazowiecka to Morlupo | 855.51 mi (1,376.81 km) |
| Ostrow Mazowiecka to Morrovalle | 758.36 mi (1,220.45 km) |
| Ostrow Mazowiecka to Mortara | 789.70 mi (1,270.91 km) |
| Ostrow Mazowiecka to Mosciano Sant'Angelo | 786.74 mi (1,266.14 km) |
| Ostrow Mazowiecka to Motta di Livenza | 639.74 mi (1,029.57 km) |
| Ostrow Mazowiecka to Motta Sant'Anastasia | 1,108.53 mi (1,784.01 km) |
| Ostrow Mazowiecka to Mottola | 871.16 mi (1,402.00 km) |
