Frances Hardinge (born 1973) is a British children's writer. Her debut novel, Fly By Night, won the 2006 Branford Boase Award and was listed as one of the School Library Journal Best Books, while her 2015 novel The Lie Tree won the 2015 Costa Book Award, the first children's book to do so since Philip Pullman's The Amber Spyglass in 2001. She has also been shortlisted for and received a number of other awards for both her novels as well as some of her short stories.