Maurice Denis (November 25, 1870 –  November 13, 1943) is a French painter, decorative artist and writer, who is an important figure in the transitional period between impressionism and modern art.

He is associated with Les Nabis ,then the Symbolist movement, and then with a return to neo-classicism.

His theories contribute to the foundations of cubism, fauvism, and abstract art.

Following the First World War, he founds the Ateliers d'Art Sacré (Workshops of Sacred Art), decorates the interiors of churches, and works for a revival of religious art.