Matheus Josephus Lambertus (Mathieu) Ficheroux (April 22, 1926 - October 11, 2003) was a Dutch artist, who worked as sculptor, glass painter, painter, draftsman, wall painter and installation artist. He is considered among the foremost Dutch artist of the second part of the 20th century. Ficheroux is especially known for his 1960s "pink and brown paintings of objects of plastic and light reliefs (sleeping pieces), in which eroticism and alienation were important themes."