Diana Noonan is a children's writer. She has published over 100 titles for children, from young adult novels to picture books for learner readers. She has also written for radio, television and film and was writer in residence at the Dunedin College of Education in 1993. Noonan has won several national awards and has had four titles shortlisted for New Zealand children's literature prizes. Her title, Quaky Cat Helps Out, made The New Zealand Best Seller List 2015.