| Viana do Castelo to Nordwalde | 1,048.28 mi (1,687.05 km) |
| Viana do Castelo to Northeim | 1,123.28 mi (1,807.75 km) |
| Viana do Castelo to Norvenich | 967.44 mi (1,556.94 km) |
| Viana do Castelo to Nossen | 1,229.90 mi (1,979.33 km) |
| Viana do Castelo to Nottuln | 1,037.47 mi (1,669.64 km) |
| Viana do Castelo to Numbrecht | 1,003.84 mi (1,615.52 km) |
| Viana do Castelo to Nuremberg | 1,097.10 mi (1,765.61 km) |
| Viana do Castelo to Nurtingen | 1,002.74 mi (1,613.75 km) |
| Viana do Castelo to Nussloch | 995.19 mi (1,601.60 km) |
| Viana do Castelo to Ober-Ramstadt | 1,012.96 mi (1,630.21 km) |
| Viana do Castelo to Oberasbach | 1,091.31 mi (1,756.29 km) |
| Viana do Castelo to Oberderdingen | 992.06 mi (1,596.57 km) |
| Viana do Castelo to Oberhaching | 1,086.77 mi (1,748.98 km) |
| Viana do Castelo to Oberhausen | 1,003.12 mi (1,614.37 km) |
| Viana do Castelo to Oberhausen-Rheinhausen | 984.82 mi (1,584.91 km) |
