Anhaux (Basque: Anhauze) is a French commune in the Pyrénées-Atlantiques department in the Aquitaine region of south-western France in the former province of Lower Navarre.
The inhabitants of the commune are known as Anhauztar.
Anhaux is located some 2 km west of Saint-Jean-Pied-de-Port and some 10 km south of Ossès. Access to the commune is solely by country roads branching from the D15 road passing to the north of the commune. The commune consists of farmland in the north with the southern part more rugged and hilly.
The commune is located in the drainage basin of the Adour. The Ontzeroneker erreka' - a tributary of the Nive d'Arnéguy - with many tributaries rising in the commune forms the southern border with Lasse commune. A right tributary of the Berroko erreka, the Aparraineko erreka flows down from the Artzaïnharria (971 m).
The Napoleonic land registry divided the commune into 16 districts in 1840: