Mareuil-en-Brie

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

{{Infobox French commune

|name = Mareuil-en-Brie

|commune status = Commune

|arrondissement = Épernay

|canton = Dormans-Paysages de Champagne

|INSEE = 51345

|postal code = 51270

|mayor = José Miguel{{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

|intercommunality = Paysages de la Champagne

|coordinates = {{coord|48.9589|3.7444|format=dms|display=inline,title}}

|elevation m = 213

|elevation min m =

|elevation max m =

|area km2 = 8.89

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

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

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

}}

Mareuil-en-Brie ({{IPA|fr|maʁœj ɑ̃ bʁi}}, literally Mareuil in Brie) is a commune in the Marne department in north-eastern France.