Stanley Boxer (1926–2000) was an American artist renowned for his thickly painted abstract works, accomplished sculpture, and printmaking. Born in New York City, he served in the U.S. Navy during World War II before studying at the Art Students League of New York on the G.I. Bill. He began his professional art career in 1953 with his first solo exhibition in New York and maintained a prolific practice across painting, drawing, sculpture, and printmaking for nearly five decades.

Boxer was recognized by art critic Clement Greenberg as a Color Field painter, a label he rejected. Instead, he embraced the term "practitioner", emphasizing process and materiality over movement or style. His work evolved from figurative studies in the 1940s and 1950s to dense, textured abstract compositions in the 1980s, often incorporating sand, glitter, and beads to create rich, tactile surfaces.

He received a Guggenheim Fellowship in 1975 and a National Endowment for the Arts Visual Artists Fellowship Grant in 1989. He was elected a full member of the National Academy of Design in 1993. His work is held in the permanent collections of major institutions, including the Metropolitan Museum of Art, Museum of Modern Art, Whitney Museum of American Art, Tate Gallery, and Hirshhorn Museum.

Boxer died on May 8, 2000, in Pittsfield, Massachusetts. According to his wife, artist Joyce Weinstein, he created over 7,000 drawings, paintings, and sculptures, with about 700 part of his estate at the time of his death.