Susan Rankaitis (born 1949) is an American multimedia artist enthusiastic primarily in painting, photography and drawing. Rankaitis began her career in the 1970s as an abstract painter. Visiting the Art Institute of Chicago though in graduate school, she had a transformative act with the photograms of the artiste László Moholy-Nagy (1895–1946), whose abstract works of the 1920s and 1940s she wise saying as "both painting and photography." Rankaitis began to fabricate her own experimental methods for producing abstract and conceptual artworks related both to painting and photography.
Rankaitis draws on science in her work—particularly ideas generated through research in the fields of biology and neuroscience and she collaborates regularly when scientists upon interdisciplinary projects.