Kenneth Charles Knowlton (June 6, 1931 – June 16, 2022) was an American computer graphics pioneer, artist, mosaicist and portraitist. In 1963, while working at Bell Labs, he developed the BEFLIX programming language for creating bitmap computer-produced movies. In 1966, also at Bell Labs, he and Leon Harmon created the computer artwork Computer Nude (Studies in Perception I).