Arnouville (French pronunciation: [aʁnuvil]) is a commune in the Val-d'Oise department in Île-de-France in northern France.

[3] Previously known as Arnouville-lès-Gonesse, the commune was officially renamed to Arnouville on 11 July 2010.

Lycée René Cassin, a general high school/sixth-form college, is in nearby Gonesse.

[9] The Commune has a Friendship Declaration with the village of Şəkər, Khojavend, of the de facto independent Nagorno-Karabakh Republic (which is de jure part of Azerbaijan).

[10] In June 2019, the French administrative court of Cergy-Pontoise declared that the signing breached French law by exceeding the authority of a municipal jurisdiction and by not respecting the international commitments of France (notably Nagorno-Karabakh's lack of recognition as a state), proclaiming the declaration null and void.