| Harsova to Noventa Vicentina | 802.07 mi (1,290.80 km) |
| Harsova to Novi di Modena | 834.70 mi (1,343.33 km) |
| Harsova to Novi Ligure | 938.77 mi (1,510.81 km) |
| Harsova to Nuoro | 992.68 mi (1,597.57 km) |
| Harsova to Occhiobello | 801.37 mi (1,289.68 km) |
| Harsova to Oderzo | 754.83 mi (1,214.78 km) |
| Harsova to Oggiono | 906.24 mi (1,458.45 km) |
| Harsova to Olbia | 968.57 mi (1,558.77 km) |
| Harsova to Oleggio | 941.34 mi (1,514.94 km) |
| Harsova to Olgiate Comasco | 924.69 mi (1,488.15 km) |
| Harsova to Olgiate Olona | 929.16 mi (1,495.33 km) |
| Harsova to Omegna | 951.39 mi (1,531.11 km) |
| Harsova to Opera | 914.01 mi (1,470.96 km) |
| Harsova to Oppeano | 819.00 mi (1,318.05 km) |
| Harsova to Orbassano | 997.69 mi (1,605.63 km) |
