Sarah Ellis is a Canadian children's writer and librarian. She was born in Vancouver, British Columbia, and attended the University of British Columbia where she received her Bachelor of Arts honours in 1973 and a Master of Library Science in 1975. She also attended the Centre for the Study of Children's Literature, Simmons College in Boston in 1980. She has been a librarian in Toronto and Vancouver. She has also written reviews for Quill and Quire. She teaches writing at the Vermont College of Fine Arts and is a masthead reviewer for The Hornbook.