| Ourem to Noventa Vicentina | 1,092.30 mi (1,757.88 km) |
| Ourem to Novi di Modena | 1,056.01 mi (1,699.49 km) |
| Ourem to Novi Ligure | 953.31 mi (1,534.21 km) |
| Ourem to Nuoro | 947.16 mi (1,524.30 km) |
| Ourem to Occhiobello | 1,088.90 mi (1,752.41 km) |
| Ourem to Oderzo | 1,145.67 mi (1,843.77 km) |
| Ourem to Oggiono | 1,000.45 mi (1,610.06 km) |
| Ourem to Olbia | 954.57 mi (1,536.23 km) |
| Ourem to Oleggio | 963.62 mi (1,550.79 km) |
| Ourem to Olgiate Comasco | 982.98 mi (1,581.96 km) |
| Ourem to Olgiate Olona | 975.79 mi (1,570.38 km) |
| Ourem to Omegna | 959.88 mi (1,544.78 km) |
| Ourem to Opera | 985.76 mi (1,586.42 km) |
| Ourem to Oppeano | 1,076.07 mi (1,731.77 km) |
| Ourem to Orbassano | 899.94 mi (1,448.32 km) |
