Anhaux (French pronunciation: [anoks]; Basque: Anhauze)[3] is a commune in the Pyrénées-Atlantiques department in the Nouvelle-Aquitaine region of south-western France.

In the Middle Ages, the eleven hamlets were: Ascarat, Sorhoeta, Moussourits, Lasse, Irouleguy, Urdos, Leispars, Occos, Oticoren, Guermiette, and Anhauz, all in the north of the valley.

Father Haristoy in his book Research on the Basque Country noted that recorded in this cartulary were: The Benedictine Abbey in question was founded in the 9th century north-east of Navarre.

It was, as with all the monasteries at the time, a vast agricultural area spread along the mountain streams in Orthe country and lower Navarre and, according to the two cited references, in the parish of Anhaux.

It was around 1023 that King Sancho III of Navarre founded the fief of the Viscounty of Baigory in favour of Garcias Lop who was related.

The Cassini map, made in the 18th century shows a parish consisting of: Azure, a pale of Argent flanked by two escallops the same.

According to the Map of the Seven Provinces edited in 1863 by Prince Louis-Lucien Bonaparte, the basque dialect spoken in Anhaux is western Lower Navarre.

Jean Iraçabal, born in 1851 at Anhaux and died in 1929 (buried at Saint-Étienne-de-Baïgorry), was a decorated French military officer.