Montlignon () is a commune in the Val-d'Oise department in Île-de-France in northern France.
Toponymy The name Montlignon likely derives from the Latin Molignum, meaning 'small mill', referring to the watermills which were present in the area.https://www.journaldefrancois.fr/origine-du-nom-des-villes-de-la-vallee-cette-semaine-montlignon-p2.htm
Population
See also Communes of the Val-d'Oise department
References
External links
Association of Mayors of the Val d'Oise