| Gretna to Muro del Alcoy | 4,942.08 mi (7,953.50 km) |
| Gretna to Naron | 4,449.72 mi (7,161.13 km) |
| Gretna to Navalcarnero | 4,726.07 mi (7,605.88 km) |
| Gretna to Navalmoral de la Mata | 4,660.51 mi (7,500.37 km) |
| Gretna to Nerja | 4,825.27 mi (7,765.53 km) |
| Gretna to Nigran | 4,448.27 mi (7,158.79 km) |
| Gretna to Nijar | 4,904.56 mi (7,893.13 km) |
| Gretna to Novelda | 4,936.75 mi (7,944.93 km) |
| Gretna to Noya | 4,430.80 mi (7,130.69 km) |
| Gretna to Nules | 4,926.05 mi (7,927.70 km) |
| Gretna to Ocana | 4,759.83 mi (7,660.21 km) |
| Gretna to Ogijares | 4,829.53 mi (7,772.38 km) |
| Gretna to Oleiros | 4,446.37 mi (7,155.74 km) |
| Gretna to Olesa de Montserrat | 4,976.15 mi (8,008.34 km) |
| Gretna to Oliva | 4,953.63 mi (7,972.10 km) |
