Charmont, Val-d'Oise

{{Infobox French commune

|name = Charmont

|commune status = Commune

|image = Charmont - Rue principale.jpg

|caption = The main road through the village, and the town hall in the centre

|image coat of arms =

|coordinates = {{coord|49.1367|1.7919|format=dms|display=inline,title}}

|arrondissement = Pontoise

|canton = Vauréal

|intercommunality =

|mayor = Rodolphe Thomassin{{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

|elevation min m = 78

|elevation max m = 153

|area km2 = 3.83

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

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

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

|INSEE = 95141

|postal code = 95420

}}

Charmont ({{IPA|fr|ʃaʁmɔ̃|-|Fr-Paris--Charmont.ogg}}) is a commune in the Val-d'Oise department and Île-de-France region of France. It is located in the {{Interlanguage link multi|Parc naturel régional du Vexin français|fr|lt=regional nature park of Vexin}}.

With just 30 inhabitants in 2015, Charmont is the least populated commune in the department and region.