| Gretna to Naugatuck (Connecticut) | 1,240.83 mi (1,996.93 km) |
| Gretna to Navarre (Florida) | 192.04 mi (309.05 km) |
| Gretna to Nederland (Texas) | 236.52 mi (380.64 km) |
| Gretna to Neenah (Wisconsin) | 988.82 mi (1,591.35 km) |
| Gretna to Neosho (Missouri) | 539.97 mi (869.00 km) |
| Gretna to Nesconset (New York) | 1,211.69 mi (1,950.03 km) |
| Gretna to New Albany (Indiana) | 628.49 mi (1,011.46 km) |
| Gretna to New Albany (Ohio) | 813.53 mi (1,309.25 km) |
| Gretna to New Baltimore (Michigan) | 971.41 mi (1,563.33 km) |
| Gretna to New Baltimore (Virginia) | 930.32 mi (1,497.20 km) |
| Gretna to New Bedford (Massachusetts) | 1,339.09 mi (2,155.05 km) |
| Gretna to New Berlin (Wisconsin) | 908.76 mi (1,462.51 km) |
| Gretna to New Bern (North Carolina) | 835.94 mi (1,345.31 km) |
| Gretna to New Braunfels (Texas) | 483.55 mi (778.19 km) |
| Gretna to New Brighton (Minnesota) | 1,061.11 mi (1,707.70 km) |
