| Tortosa to Noventa Vicentina | 635.28 mi (1,022.38 km) |
| Tortosa to Novi di Modena | 595.96 mi (959.10 km) |
| Tortosa to Novi Ligure | 499.59 mi (804.02 km) |
| Tortosa to Nuoro | 463.61 mi (746.10 km) |
| Tortosa to Occhiobello | 627.20 mi (1,009.38 km) |
| Tortosa to Oderzo | 691.96 mi (1,113.61 km) |
| Tortosa to Oggiono | 560.74 mi (902.42 km) |
| Tortosa to Olbia | 469.02 mi (754.81 km) |
| Tortosa to Oleggio | 525.21 mi (845.24 km) |
| Tortosa to Olgiate Comasco | 545.67 mi (878.17 km) |
| Tortosa to Olgiate Olona | 536.35 mi (863.18 km) |
| Tortosa to Omegna | 528.21 mi (850.08 km) |
| Tortosa to Opera | 540.05 mi (869.13 km) |
| Tortosa to Oppeano | 620.45 mi (998.52 km) |
| Tortosa to Orbassano | 458.02 mi (737.11 km) |
