| Dublin to Montemor-o-Novo | 1,019.90 mi (1,641.37 km) |
| Dublin to Montemor-o-Velho | 917.93 mi (1,477.27 km) |
| Dublin to Montijo | 1,021.07 mi (1,643.26 km) |
| Dublin to Mortagua | 897.22 mi (1,443.93 km) |
| Dublin to Moura | 1,052.90 mi (1,694.47 km) |
| Dublin to Murtosa | 878.73 mi (1,414.18 km) |
| Dublin to Nazare | 959.18 mi (1,543.65 km) |
| Dublin to Nelas | 889.80 mi (1,432.00 km) |
| Dublin to Obidos | 976.36 mi (1,571.30 km) |
| Dublin to Odemira | 1,095.27 mi (1,762.66 km) |
| Dublin to Odivelas | 1,015.44 mi (1,634.20 km) |
| Dublin to Oeiras | 1,023.68 mi (1,647.46 km) |
| Dublin to Olhao | 1,130.43 mi (1,819.25 km) |
| Dublin to Oliveira de Azemeis | 870.50 mi (1,400.94 km) |
| Dublin to Oliveira de Frades | 877.48 mi (1,412.16 km) |
