Lannux

{{Use dmy dates|date=August 2023}}

{{Infobox French commune

|name = Lannux

|commune status = Commune

|image = Lannux - Mairie.JPG

|caption = The town hall in Lannux

|arrondissement = Mirande

|canton = Adour-Gersoise

|INSEE = 32192

|postal code = 32400

|mayor = Lambert Gijsbers{{cite web|title=Répertoire national des élus: les maires|url=https://www.data.gouv.fr/fr/datasets/r/2876a346-d50c-4911-934e-19ee07b0e503|website=data.gouv.fr, Plateforme ouverte des données publiques françaises|date=2 December 2020|language=fr}}

|term = 2020–2026

|intercommunality =

|coordinates = {{coord|43.6481|-0.2158|format=dms|display=inline,title}}

|elevation m = 170

|elevation min m = 82

|elevation max m = 223

|area km2 = 12.83

|population = {{France metadata Wikidata|population_total}}

|population date = {{France metadata Wikidata|population_as_of}}

|population footnotes = {{France metadata Wikidata|population_footnotes}}

}}

Lannux ({{IPA|fr|lanyks}}; {{langx|oc-gascon|Lanutz}}) is a commune in the Gers department in southwestern France.