| Viana do Castelo to Mouscron | 847.26 mi (1,363.54 km) |
| Viana do Castelo to Namur | 890.69 mi (1,433.43 km) |
| Viana do Castelo to Neder-Over-Heembeek | 893.03 mi (1,437.19 km) |
| Viana do Castelo to Neerpelt | 942.86 mi (1,517.38 km) |
| Viana do Castelo to Nevele | 872.01 mi (1,403.36 km) |
| Viana do Castelo to Niel | 901.14 mi (1,450.24 km) |
| Viana do Castelo to Nieuwpoort | 851.08 mi (1,369.69 km) |
| Viana do Castelo to Nijlen | 913.79 mi (1,470.61 km) |
| Viana do Castelo to Ninove | 877.89 mi (1,412.84 km) |
| Viana do Castelo to Nivelles | 876.78 mi (1,411.05 km) |
| Viana do Castelo to Olen | 919.67 mi (1,480.07 km) |
| Viana do Castelo to Oostakker | 882.05 mi (1,419.52 km) |
| Viana do Castelo to Oosterzele | 876.15 mi (1,410.03 km) |
| Viana do Castelo to Oostkamp | 867.86 mi (1,396.69 km) |
| Viana do Castelo to Opglabbeek | 940.12 mi (1,512.97 km) |
