| Grimsby to Noventa Vicentina | 772.70 mi (1,243.53 km) |
| Grimsby to Novi di Modena | 775.80 mi (1,248.53 km) |
| Grimsby to Novi Ligure | 727.36 mi (1,170.58 km) |
| Grimsby to Nuoro | 1,015.50 mi (1,634.30 km) |
| Grimsby to Occhiobello | 793.93 mi (1,277.71 km) |
| Grimsby to Oderzo | 776.03 mi (1,248.91 km) |
| Grimsby to Oggiono | 682.20 mi (1,097.89 km) |
| Grimsby to Olbia | 980.82 mi (1,578.47 km) |
| Grimsby to Oleggio | 673.77 mi (1,084.33 km) |
| Grimsby to Olgiate Comasco | 671.85 mi (1,081.24 km) |
| Grimsby to Olgiate Olona | 678.32 mi (1,091.65 km) |
| Grimsby to Omegna | 651.69 mi (1,048.80 km) |
| Grimsby to Opera | 701.59 mi (1,129.10 km) |
| Grimsby to Oppeano | 761.38 mi (1,225.32 km) |
| Grimsby to Orbassano | 682.97 mi (1,099.13 km) |
