| Trentham to Noventa Vicentina | 814.17 mi (1,310.28 km) |
| Trentham to Novi di Modena | 812.69 mi (1,307.90 km) |
| Trentham to Novi Ligure | 753.59 mi (1,212.79 km) |
| Trentham to Nuoro | 1,028.02 mi (1,654.44 km) |
| Trentham to Occhiobello | 833.81 mi (1,341.90 km) |
| Trentham to Oderzo | 823.73 mi (1,325.66 km) |
| Trentham to Oggiono | 716.59 mi (1,153.25 km) |
| Trentham to Olbia | 995.83 mi (1,602.64 km) |
| Trentham to Oleggio | 703.52 mi (1,132.21 km) |
| Trentham to Olgiate Comasco | 704.33 mi (1,133.51 km) |
| Trentham to Olgiate Olona | 709.55 mi (1,141.90 km) |
| Trentham to Omegna | 681.78 mi (1,097.23 km) |
| Trentham to Opera | 733.16 mi (1,179.91 km) |
| Trentham to Oppeano | 801.50 mi (1,289.89 km) |
| Trentham to Orbassano | 703.62 mi (1,132.37 km) |
