Katrina Elizabeth DiCamillo is an American children's fiction author. She has published over 25 novels, including Because of Winn-Dixie, The Tiger Rising, The Tale of Despereaux, The Miraculous Journey of Edward Tulane, The Magician's Elephant, the Mercy Watson series, and Flora & Ulysses. Her books have sold around 37 million copies. Four have been developed into films and two have been adapted into musical settings. Her works have won various awards; The Tale of Despereaux and Flora & Ulysses won the Newbery Medal, making DiCamillo one of six authors to have won two Newbery Medals.

Because of Winn-Dixie is a 2000 children's novel written by Kate DiCamillo. It was adapted as a 2005 family film directed by Wayne Wang, produced by Walden Media and Twentieth Century Fox, and starring AnnaSophia Robb as Opal Buloni.