Arlebosc is located some 12 km west by south-west ofTournon-sur-Rhône and 8 km north-east ofLamastre. Access to the commune is by the D578 road fromSaint-Jeure-d'Ay in the north passing through the village and continuing west then south-west to join the D534 north-west ofLamastre. Apart from the village there are the hamlets of Saint-Just in the north-east and Les Fauries in the western extension of the commune. The commune is rugged and heavily forested with some farmland on the eastern side.[3]
TheDoux river forms part of the south-western border and flows through the commune from south-west to north-east. TheRuisseau de Balaye forms the western border as it flows south to join the Doux. Other streams rise in the commune and flow south-east to join the Doux. TheMerdenc rises in the north of the commune and forms part of the northern border as it flows north-east to join theDaronne south-east ofSaint-Félicien.[3]
A legend attributes the name of the commune to one of its Lords:Bozon d'Arles.
In reality, it is a name from the Old French-bosc (a primitive form ofbois meaning "wood") attested in theOccitan form ofArlabosc from 912 and Latinized toAllabosco in the 14th century.[4]
Ernest Nègre[4] explained the first element as anOccitan formerela meaning "cranberry". The French term for cranberry (Airelle) is considered to be a borrowing from a variant of the Massif Central or the Alpineéiréla (alsoairelo). TheProvençalaire is also used for "cranberry", from the Latinater meaning "black",[5] d'où la signification globale de « bois des airelles ».3, so the overall meaning is "forest of cranberries".
Myriam Gagnaire, a presenter onFrance 3 andTV5 Monde on "Side gardens" is a resident of the commune and artistic director ofhttp://www.lacompagnieduchatquilouche.frArchived 2019-02-12 at theWayback Machine, a cultural association whose headquarters is in Arlebosc and covers the Ardèche department with various cultural and educational activities in association with the local authorities.