| Tarragona to Nasaud | 1,218.18 mi (1,960.48 km) |
| Tarragona to Navodari | 1,400.04 mi (2,253.15 km) |
| Tarragona to Negresti-Oas | 1,183.08 mi (1,903.99 km) |
| Tarragona to Nehoiu | 1,289.26 mi (2,074.86 km) |
| Tarragona to Ocna Mures | 1,181.16 mi (1,900.89 km) |
| Tarragona to Odobesti | 1,328.22 mi (2,137.56 km) |
| Tarragona to Odorheiu Secuiesc | 1,248.27 mi (2,008.90 km) |
| Tarragona to Oltenita | 1,302.18 mi (2,095.66 km) |
| Tarragona to Onesti | 1,317.31 mi (2,120.00 km) |
| Tarragona to Oradea | 1,101.20 mi (1,772.21 km) |
| Tarragona to Orastie | 1,143.95 mi (1,841.02 km) |
| Tarragona to Oravita | 1,063.33 mi (1,711.27 km) |
| Tarragona to Orsova | 1,095.39 mi (1,762.86 km) |
| Tarragona to Otelu Rosu | 1,100.09 mi (1,770.42 km) |
| Tarragona to Otopeni | 1,274.79 mi (2,051.57 km) |
