| Greifswald to Marco de Canavezes | 1,331.74 mi (2,143.24 km) |
| Greifswald to Marinha Grande | 1,434.18 mi (2,308.08 km) |
| Greifswald to Massama | 1,499.35 mi (2,412.98 km) |
| Greifswald to Matosinhos | 1,350.50 mi (2,173.42 km) |
| Greifswald to Mealhada | 1,384.12 mi (2,227.53 km) |
| Greifswald to Melgaco | 1,287.57 mi (2,072.15 km) |
| Greifswald to Melres | 1,346.34 mi (2,166.72 km) |
| Greifswald to Mira | 1,390.99 mi (2,238.59 km) |
| Greifswald to Miranda do Corvo | 1,395.38 mi (2,245.65 km) |
| Greifswald to Mirandela | 1,283.25 mi (2,065.18 km) |
| Greifswald to Mogadouro | 1,275.84 mi (2,053.26 km) |
| Greifswald to Moimenta da Beira | 1,324.43 mi (2,131.46 km) |
| Greifswald to Moita | 1,495.65 mi (2,407.02 km) |
| Greifswald to Moncao | 1,297.19 mi (2,087.62 km) |
| Greifswald to Montalegre | 1,286.26 mi (2,070.03 km) |
