| Middle Island to Noventa Vicentina | 4,070.67 mi (6,551.10 km) |
| Middle Island to Novi di Modena | 4,056.39 mi (6,528.13 km) |
| Middle Island to Novi Ligure | 3,969.13 mi (6,387.69 km) |
| Middle Island to Nuoro | 4,141.25 mi (6,664.69 km) |
| Middle Island to Occhiobello | 4,084.69 mi (6,573.67 km) |
| Middle Island to Oderzo | 4,094.96 mi (6,590.20 km) |
| Middle Island to Oggiono | 3,961.09 mi (6,374.76 km) |
| Middle Island to Olbia | 4,128.14 mi (6,643.60 km) |
| Middle Island to Oleggio | 3,936.02 mi (6,334.41 km) |
| Middle Island to Olgiate Comasco | 3,944.64 mi (6,348.29 km) |
| Middle Island to Olgiate Olona | 3,945.75 mi (6,350.07 km) |
| Middle Island to Omegna | 3,917.63 mi (6,304.81 km) |
| Middle Island to Opera | 3,968.00 mi (6,385.87 km) |
| Middle Island to Oppeano | 4,055.16 mi (6,526.14 km) |
| Middle Island to Orbassano | 3,906.89 mi (6,287.53 km) |
