William Anastasi

William Anastasi (b. Philadelphia, Pennsylvania, 1933) is an American painter and visual artist. He has lived and worked in New York City since the early 1960s and is known as "one of the most underrated conceptual artists of his generation".

His work is predominantly abstract and conceptual. Early works such as Relief (1961) and Issue (1966) incorporate the use of industrial and construction materials. His works are held by the Metropolitan Museum of Art, the Museum of Modern Art, the Guggenheim Museum, the Whitney Museum, the Walker Art Center, the National Gallery of Art, and the Art Institute of Chicago. In 2010 Anastasi was awarded the Foundation for Contemporary Arts John Cage Award, an unrestricted grant awarded biennially.

Currently exhibited works include "Nine Polaroid Photographs of a Mirror", currently at the Metropolitan Museum of Art. In 2007, he took part in the artistic performance "Blind Date" at the White Box Gallery in New York. In the performance, he and fellow artist Lucio Pozzi both drew dozens of artistic pieces blindfolded in an 8 hour long artistic duel.

In his early career, Anastasi was largely influenced by Marcel Duchamp, who inspired his shows at the Dwan Gallery from 1965-1970.