Juan Gris (born March 23, 1887, Madrid, Spain — died May 11, 1927, Boulogne-sur-Seine, Fr.) was a Spanish painter active in Paris. He studied engineering at the Madrid School of Arts and Manufactures (1902 – 04).

In 1906 he moved to Paris and began producing drawings in the Art Nouveau style for newspapers. He became involved with the Cubist artists, notably Pablo Picasso, and soon developed his own version of Synthetic Cubism, a style more severe and calculated than that of other Cubists. His works, typically still lifes, are characterized by rigorously geometric compositions. His technique included the use of paper collage. He also produced sculpture, book illustrations, and sets and costumes for Sergey Diaghilev's Ballets Russes.