The Green Magician
 The Green Magician is a fantasy novella written by science fiction and fantasy authors L. Sprague de Camp and Fletcher Pratt as the fifth story in their Harold Shea series. It was first published in the November 1954 issue of the fantasy pulp magazine Beyond Fiction. It first appeared in book form together with The Wall of Serpents in the collection Wall of Serpents issued in hardcover by Avalon Books in 1960; the book has been reissued by a number of other publishers since.