Justin McCarthy (May 13, 1891–July 14, 1977) was a self-taught American artist. His work is in many important collections, including those of the American Folk Art Museum, the Milwaukee Art Museum, the , the Philadelphia Museum of Art, and the Smithsonian American Art Museum. The New York Times has praised his "paintings and drawings of gestural force and narrative interest." McCarthy's imagery anticipates the Pop art of the 1960s.