William Didier-Pouget was a French artist known for his landscape paintings. He focused primarily on the countryside of southern France, infusing his landscapes, always painted outdoors, with light and color. Didier-Pouget is associated with the later phase of Impressionism, although not actually identified with the group of artists typically known as the Impressionists. His career as an exhibiting artist stems from 1886 onwards. He was a member of the Société des Artistes Français, a member of l'École de Crozant and Société des peintres de montagne. Also, laureate of l'Institut au Concours Troyon, Officer of the order of Nichan Iftikar, and Officer of the Legion of Honour.

En plein air, or plein-air painting, is the act of painting outdoors.