Children's fantasy is children's literature with fantasy elements: fantasy intended for young readers. It may also mean fantasy read by children, regardless of the intended audience.

Septimus Heap is a series of children's fantasy novels featuring a protagonist of the same name written by English author Angie Sage. In all, it features seven novels, entitled Magyk, Flyte, Physik, Queste, Syren, Darke, and Fyre. The first, Magyk, was published in 2005 and the last, Fyre, in 2013. A full colour supplement to the series, entitled The Magykal Papers, was published in June 2009, and an online novella titled The Darke Toad is also available. A sequel trilogy, The TodHunter Moon Series, set seven years after the events of Fyre, began in October 2014.