Kacen Callender is a Saint Thomian author of children's fiction and fantasy, best known for their Stonewall Book Award and Lambda Literary Award-winning middle grade debut Hurricane Child. Their fantasy novel, Queen of the Conquered, is the 2020 winner of the World Fantasy Award and King and the Dragonflies won the 2020 National Book Award for Young People's Literature.

Callender is Black, queer, trans, and uses they/them and he/him pronouns. Callender debuted their new name when announcing their next young adult novel Felix Ever After in May 2019.