Marilyn Kaye (born 1949) is a children's author. She taught children's literature at St. John's University, New York. She is the author of many children's and young adult novel series, including the successful Replica and Gifted series.
Marilyn Kaye was born in 1949 in New Britain, Connecticut. She spent most of her childhood in Atlanta, Georgia although she spent her tenth year in Montgomery, Georgia and her thirteenth in Ann Arbor, Michigan.  She kept a diary as a child and wrote in a wide range of formats.
Marilyn majored in English at Emory University, going on to study a master's degree in library science at Emory and a Doctor of Philosophy degree at the University of Chicago with the thesis title "The nature of didacticism as related to romance and sexuality in young adult novels, 1965-1978". She taught children's literature at St. John's University New York for over twenty years. She began publishing her work in 1984 under the pseudonym Shannon Blair, and has since had much success, particularly with the internationally selling Replica series. She currently lives in Paris and writes full time.