Diet Wiegman (born 24 January 1944 in Schiedam) is a Dutch multidisciplinary visual artist from the Netherlands. Wiegman's father and grandfather were artists as well. This upbringing lead him to study at the Rotterdam Academy of Art, from 1961 to 1965, and to become a dedicated artist himself. Wiegman is referred to as an 'art omnivore'. An art movement by the same title was named after him. He has works in a multitude of disciplines.