Lion-devant-Dun

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

{{Infobox French commune

|name = Lion-devant-Dun

|commune status = Commune

|image = ChateauLion.JPG

|caption = The chateau in Lion-devant-Dun

|image coat of arms = Blason ville fr Lion-devant-Dun (Meuse).svg

|arrondissement = Verdun

|canton = Stenay

|INSEE = 55293

|postal code = 55110

|mayor = Daniel Windels{{cite web|title=Répertoire national des élus: les maires|url=https://www.data.gouv.fr/en/datasets/r/2876a346-d50c-4911-934e-19ee07b0e503|website=data.gouv.fr, Plateforme ouverte des données publiques françaises|date=9 August 2021|language=fr}}

|term = 2020–2026

|intercommunality = CC du Pays de Stenay et du Val Dunois

|coordinates = {{coord|49.4114|5.2303|format=dms|display=inline,title}}

|elevation m = 179

|elevation min m = 171

|elevation max m = 340

|area km2 = 15.51

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

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

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

}}

Lion-devant-Dun ({{IPA|fr|ljɔ̃ dəvɑ̃ dœ̃}}, literally Lion before Dun) is a commune in the Meuse department in Grand Est in north-eastern France.