| Clay to Noventa Vicentina | 4,965.18 mi (7,990.68 km) |
| Clay to Novi di Modena | 4,951.80 mi (7,969.15 km) |
| Clay to Novi Ligure | 4,865.69 mi (7,830.57 km) |
| Clay to Nuoro | 5,040.10 mi (8,111.25 km) |
| Clay to Occhiobello | 4,979.69 mi (8,014.04 km) |
| Clay to Oderzo | 4,988.08 mi (8,027.54 km) |
| Clay to Oggiono | 4,856.09 mi (7,815.12 km) |
| Clay to Olbia | 5,026.93 mi (8,090.06 km) |
| Clay to Oleggio | 4,831.63 mi (7,775.76 km) |
| Clay to Olgiate Comasco | 4,839.83 mi (7,788.96 km) |
| Clay to Olgiate Olona | 4,841.19 mi (7,791.15 km) |
| Clay to Omegna | 4,812.97 mi (7,745.73 km) |
| Clay to Opera | 4,863.61 mi (7,827.22 km) |
| Clay to Oppeano | 4,949.85 mi (7,966.01 km) |
| Clay to Orbassano | 4,803.68 mi (7,730.78 km) |
