Arette is a commune in the Pyrénées-Atlantiques department in the Nouvelle-Aquitaine region of southwestern France. It is located in th…Arette is a commune in the Pyrénées-Atlantiques department in the Nouvelle-Aquitaine region of southwestern France. It is located in the arrondissement of Oloron-Sainte-Marie and the canton of Oloron-Sainte-Marie-1.