Rosemary Jeanne Harris (20 February 1923 – 14 October 2019) was a British author of children's fiction. She won the 1968 Carnegie Medal for British children's books.Harris was born in London in February 1923. She attended school in Weymouth, and then studied at the Central Saint Martins College of Art and Design, the Chelsea School of Art and the Courtauld Institute. She served in the British Red Cross Nursing Auxiliary Westminster Division during World War II and subsequently worked as a picture restorer and as a reader for Metro-Goldwyn-Mayer. From 1970 to 1973 she reviewed children's books for The Times.For The Moon in the Cloud, published by Faber in 1968, Harris won the annual Carnegie Medal from the Library Association, recognising the year's best children's book by a British subject. The Moon was the first volume of a trilogy set in ancient Egypt, followed by The Shadow on the Sun (1970) and The Bright and Morning Star (1972). The book was also the basis for a 1978 episode of the BBC series Jackanory.
Harris died on 14 October 2019, at the age of 96.
She is also known as Harris, Rosemary.