| Hartlepool to Noventa Vicentina | 859.27 mi (1,382.86 km) |
| Hartlepool to Novi di Modena | 863.51 mi (1,389.69 km) |
| Hartlepool to Novi Ligure | 816.86 mi (1,314.60 km) |
| Hartlepool to Nuoro | 1,105.54 mi (1,779.20 km) |
| Hartlepool to Occhiobello | 880.89 mi (1,417.66 km) |
| Hartlepool to Oderzo | 860.63 mi (1,385.05 km) |
| Hartlepool to Oggiono | 770.58 mi (1,240.13 km) |
| Hartlepool to Olbia | 1,070.85 mi (1,723.37 km) |
| Hartlepool to Oleggio | 762.91 mi (1,227.78 km) |
| Hartlepool to Olgiate Comasco | 760.58 mi (1,224.04 km) |
| Hartlepool to Olgiate Olona | 767.24 mi (1,234.75 km) |
| Hartlepool to Omegna | 740.81 mi (1,192.23 km) |
| Hartlepool to Opera | 790.42 mi (1,272.06 km) |
| Hartlepool to Oppeano | 848.34 mi (1,365.27 km) |
| Hartlepool to Orbassano | 772.90 mi (1,243.86 km) |
