Stanley William Hayter (27 December 1901 – 4 May 1988) was an English painter and master printmaker associated in the 1930s with surrealism and from 1940 onward with abstract expressionism. Regarded as one of the most significant printmakers of the 20th century, in 1927 Hayter founded the legendary Atelier 17 studio in Paris. Since his death in 1988, it has been known as Atelier Contrepoint. Among the artists who frequented the atelier were Pablo Picasso, Alberto Giacometti, Joan Miró, Alexander Calder, Marc Chagall, Nemesio Antúnez, Jackson Pollock, Mark Rothko, Wassily Kandinsky, Mauricio Lasansky, K.R.H. Sonderborg, Flora Blanc, Carl Heywood, and Catherine Yarrow.