| Létanne | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason Létanne.svg |
| Arrondissement: | Sedan |
| Canton: | Carignan |
| Insee: | 08252 |
| Postal Code: | 08210 |
| Mayor: | Dominique Barré[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 49.5453°N 5.0819°W |
| Elevation M: | 162 |
| Area Km2: | 7.5 |
Létanne (in French pronounced as /letan/) is a commune in the Ardennes department in northern France.