| Highgate to Noventa Vicentina | 688.12 mi (1,107.42 km) |
| Highgate to Novi di Modena | 685.21 mi (1,102.73 km) |
| Highgate to Novi Ligure | 624.33 mi (1,004.76 km) |
| Highgate to Nuoro | 899.46 mi (1,447.54 km) |
| Highgate to Occhiobello | 707.16 mi (1,138.07 km) |
| Highgate to Oderzo | 700.27 mi (1,126.97 km) |
| Highgate to Oggiono | 588.70 mi (947.42 km) |
| Highgate to Olbia | 866.88 mi (1,395.11 km) |
| Highgate to Oleggio | 574.73 mi (924.94 km) |
| Highgate to Olgiate Comasco | 576.04 mi (927.04 km) |
| Highgate to Olgiate Olona | 581.00 mi (935.02 km) |
| Highgate to Omegna | 553.09 mi (890.11 km) |
| Highgate to Opera | 604.63 mi (973.06 km) |
| Highgate to Oppeano | 675.01 mi (1,086.33 km) |
| Highgate to Orbassano | 574.16 mi (924.03 km) |
