(b. 1860, Lagny-sur-Marne, d. 1944, Lagny-sur-Marne)
French painter. His interest in art was awakened at an early age in the studio of the graphic artist Eugène Froment, a friend of the family. He began as a wood sculptor, then studied graphics, finally turning to painting. At the Atelier Froment he met Maximilien Luce and Cavallo-Peduzzi. As an innovative artist, he enthusiastically partook in two artistic movements, which emerged nearly at the same time, Neo-Impressionism and Synthetism based on very different aesthetic concepts. He was influenced by Camille Pissarro, Paul Signac, Luce, van Gogh, Gauguin, and Émile Bernard.
Gausson exhibited at the Salon for the first time in 1886, and he exhibited at the Salon des Indépendant in 1887-1900. Between 1900 and 1910 he lived in Africa.
Gausson published his poems under the pseudonym Montesiste.