| Ostrow Mazowiecka to Marsala | 1,131.75 mi (1,821.38 km) |
| Ostrow Mazowiecka to Marsciano | 812.70 mi (1,307.91 km) |
| Ostrow Mazowiecka to Martano | 886.96 mi (1,427.43 km) |
| Ostrow Mazowiecka to Martellago | 665.78 mi (1,071.47 km) |
| Ostrow Mazowiecka to Martina Franca | 863.08 mi (1,388.99 km) |
| Ostrow Mazowiecka to Martinengo | 739.65 mi (1,190.35 km) |
| Ostrow Mazowiecka to Martinsicuro | 777.70 mi (1,251.58 km) |
| Ostrow Mazowiecka to Mascali | 1,088.52 mi (1,751.80 km) |
| Ostrow Mazowiecka to Mascalucia | 1,102.88 mi (1,774.92 km) |
| Ostrow Mazowiecka to Masera di Padova | 686.97 mi (1,105.58 km) |
| Ostrow Mazowiecka to Maserada sul Piave | 649.97 mi (1,046.02 km) |
| Ostrow Mazowiecka to Massa | 809.17 mi (1,302.23 km) |
| Ostrow Mazowiecka to Massa Lombarda | 736.73 mi (1,185.65 km) |
| Ostrow Mazowiecka to Massafra | 873.51 mi (1,405.77 km) |
| Ostrow Mazowiecka to Massalubrense | 913.42 mi (1,470.01 km) |
