| Napa to Noventa Vicentina | 5,988.84 mi (9,638.11 km) |
| Napa to Novi di Modena | 5,993.39 mi (9,645.43 km) |
| Napa to Novi Ligure | 5,940.48 mi (9,560.28 km) |
| Napa to Nuoro | 6,204.85 mi (9,985.73 km) |
| Napa to Occhiobello | 6,010.75 mi (9,673.37 km) |
| Napa to Oderzo | 5,986.54 mi (9,634.41 km) |
| Napa to Oggiono | 5,899.60 mi (9,494.48 km) |
| Napa to Olbia | 6,176.37 mi (9,939.91 km) |
| Napa to Oleggio | 5,889.34 mi (9,477.98 km) |
| Napa to Olgiate Comasco | 5,888.70 mi (9,476.94 km) |
| Napa to Olgiate Olona | 5,894.66 mi (9,486.55 km) |
| Napa to Omegna | 5,867.41 mi (9,442.68 km) |
| Napa to Opera | 5,918.14 mi (9,524.32 km) |
| Napa to Oppeano | 5,978.21 mi (9,621.01 km) |
| Napa to Orbassano | 5,890.15 mi (9,479.28 km) |
