Arreux (French pronunciation: [aʁø]) is a commune in the Ardennes department in the Grand Est region of northern France.

Access to the commune is by road D22 from Montcornet in the west passing through the village and continuing east to Nouzonville.

Some two thirds of the commune is heavily forested - especially in the east, with some farmland around the village.

A stream rises south of the village and flows north to join the Ruisseau du Fond d'Arreux.

List of Successive Mayors[6] The inhabitants of the commune are known as Cabres in French.