Born in Boussy-Saint-Antoine, and brought up there and in Paris, André Dunoyer de Segonzac rejected academic art study, preferring a more independent course. He first exhibited at the Salon d'Automne in 1908, and after this exhibited regularly. He was one of the modernists included in the Armory Show that opened in New York in 1913. In Paris he was a contemporary and friend of J.D. Fergusson.
While serving in the First World War he published and exhibited a number of war drawings, and learned etching in 1919 in order to illustrate The Wooden Crosses by Roland Dorgelès (published in 1921). By the end of his life he had produced some 1600 etched plates. He also painted in oils.