| Guimaraes to Noventa Vicentina | 1,027.87 mi (1,654.20 km) |
| Guimaraes to Novi di Modena | 993.78 mi (1,599.33 km) |
| Guimaraes to Novi Ligure | 889.84 mi (1,432.05 km) |
| Guimaraes to Nuoro | 922.83 mi (1,485.16 km) |
| Guimaraes to Occhiobello | 1,027.06 mi (1,652.90 km) |
| Guimaraes to Oderzo | 1,078.78 mi (1,736.13 km) |
| Guimaraes to Oggiono | 929.94 mi (1,496.60 km) |
| Guimaraes to Olbia | 924.70 mi (1,488.16 km) |
| Guimaraes to Oleggio | 893.42 mi (1,437.83 km) |
| Guimaraes to Olgiate Comasco | 911.93 mi (1,467.61 km) |
| Guimaraes to Olgiate Olona | 905.72 mi (1,457.61 km) |
| Guimaraes to Omegna | 887.27 mi (1,427.93 km) |
| Guimaraes to Opera | 918.01 mi (1,477.39 km) |
| Guimaraes to Oppeano | 1,011.19 mi (1,627.36 km) |
| Guimaraes to Orbassano | 832.72 mi (1,340.13 km) |
