| Namsos to Noventa Vicentina | 1,325.37 mi (2,132.98 km) |
| Namsos to Novi di Modena | 1,352.50 mi (2,176.64 km) |
| Namsos to Novi Ligure | 1,365.60 mi (2,197.72 km) |
| Namsos to Nuoro | 1,670.79 mi (2,688.88 km) |
| Namsos to Occhiobello | 1,350.36 mi (2,173.20 km) |
| Namsos to Oderzo | 1,291.55 mi (2,078.56 km) |
| Namsos to Oggiono | 1,293.43 mi (2,081.57 km) |
| Namsos to Olbia | 1,629.03 mi (2,621.67 km) |
| Namsos to Oleggio | 1,308.09 mi (2,105.17 km) |
| Namsos to Olgiate Comasco | 1,294.44 mi (2,083.20 km) |
| Namsos to Olgiate Olona | 1,305.03 mi (2,100.24 km) |
| Namsos to Omegna | 1,289.68 mi (2,075.54 km) |
| Namsos to Opera | 1,321.36 mi (2,126.53 km) |
| Namsos to Oppeano | 1,324.27 mi (2,131.21 km) |
| Namsos to Orbassano | 1,353.06 mi (2,177.54 km) |
