| Lannux | |
| Commune Status: | Commune |
| Arrondissement: | Mirande |
| Canton: | Adour-Gersoise |
| Insee: | 32192 |
| Postal Code: | 32400 |
| Mayor: | Lambert Gijsbers[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 43.6481°N -0.2158°W |
| Elevation M: | 170 |
| Elevation Min M: | 82 |
| Elevation Max M: | 223 |
| Area Km2: | 12.83 |
Lannux (pronounced as /fr/; oc-gascon|Lanutz) is a commune in the Gers department in southwestern France.