Matthew Monahan (born 1972, Eureka, California) is a United States artist based in Los Angeles. He is represented by Anton Kern Gallery in New York, Massimo de Carlo London, Milan, and Fons Welters in Amsterdam. Monahan studied at the Cooper Union School of Art in New York City and the Gerrit Rietveld Academie in Amsterdam.
Monahan has shown his sculptures at various galleries, collections, and museums, including the Los Angeles Museum of Contemporary Art, the Chinese European Art Center in Xiamen, Bureau Stedelijk in Amsterdam, The National Center for Art in St. Petersburg, Russia, the Royal Academy and the Saatchi Gallery in London, and Museum Boijmans Van Beuningen, The Stedelijk Museum and the Fries Museum, all in the Netherlands.
In 1999, Monahan participated in both the Liverpool and LA International Biennials.