Paul Sérusier, in full Louis-Paul-Henri Sérusier (born November 9, 1864, Paris-died October 6, 1927, Morlaix, France), French Post-Impressionist painter and theorist who was instrumental in the formation of the short-lived, but highly influential, late 19th-century art movement known as the Nabis. The group was noted for its expressive use of colour and pattern in the mode of Paul Gauguin.