Lucmau

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

{{Infobox French commune

|name = Lucmau

|commune status = Commune

|image = Lucmau Mairie.jpg

|caption = Town hall

|arrondissement = Langon

|canton = Le Sud-Gironde

|INSEE = 33255

|postal code = 33840

|mayor = Michel Estenaves{{cite web|title=Répertoire national des élus: les maires|url=https://www.data.gouv.fr/fr/datasets/r/2876a346-d50c-4911-934e-19ee07b0e503|publisher=data.gouv.fr, Plateforme ouverte des données publiques françaises|date=13 September 2022|language=fr}}

|term = 2020–2026

|coordinates = {{coord|44.3428|-0.3064|format=dms|display=inline,title}}

|elevation m = 73

|elevation min m = 48

|elevation max m = 126

|area km2 = 66.73

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

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

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

}}

Lucmau ({{IPA|fr|lykmo}}) is a commune in the Gironde department in Nouvelle-Aquitaine in southwestern France.