Julian Clare May was an American science fiction, fantasy, horror, science, and children's writer who also used several literary pseudonyms. She is best known for her Saga of Pliocene Exile (Saga of the Exiles in the United Kingdom) and the Galactic Milieu Series books.

Julian May's writing career spanned several decades, during which she wrote juvenile science non-fiction along with science fiction novels for adults. Her versatility as a writer is reflected in the diverse range of genres she explored, making her a prominent name in the literary world.