| Haddington to Noventa Vicentina | 964.41 mi (1,552.07 km) |
| Haddington to Novi di Modena | 969.46 mi (1,560.19 km) |
| Haddington to Novi Ligure | 923.84 mi (1,486.78 km) |
| Haddington to Nuoro | 1,212.35 mi (1,951.09 km) |
| Haddington to Occhiobello | 986.30 mi (1,587.30 km) |
| Haddington to Oderzo | 964.26 mi (1,551.83 km) |
| Haddington to Oggiono | 876.99 mi (1,411.38 km) |
| Haddington to Olbia | 1,177.80 mi (1,895.48 km) |
| Haddington to Oleggio | 869.74 mi (1,399.71 km) |
| Haddington to Olgiate Comasco | 867.20 mi (1,395.63 km) |
| Haddington to Olgiate Olona | 873.96 mi (1,406.50 km) |
| Haddington to Omegna | 847.64 mi (1,364.15 km) |
| Haddington to Opera | 897.09 mi (1,443.73 km) |
| Haddington to Oppeano | 953.77 mi (1,534.94 km) |
| Haddington to Orbassano | 879.96 mi (1,416.15 km) |
