Betty LaDuke (born 1933) is an American artist and writer from Oregon.
LaDuke was born in the Bronx, New York, in 1933. She attended the High School of Music and Art in New York starting at age sixteen, and later studied at Denver University, the Cleveland Institute of Art. In the fifties she received a scholarship which allowed her to study art at and Mexico's Instituto Allende from 1953 through 1956. During her time in Mexico she lived with the indigenous Otomi, whose concern with the preservation of their heritage profoundly influenced LaDuke's work.
LaDuke's work is held by the Portland Art Museum.