Kathryn Ptacek (b: 1952, Omaha, Nebraska) is an American author and editor. She received her B. A. in Journalism, with a minor in history, with honors from the University of New Mexico, Albuquerque, in 1974. She has published science fiction, fantasy, horror, suspense, and romance short stories and novels under a variety of pseudonyms, including:
She is the editor and publisher of the writers-market magazine, The Gila Queen's Guide to Markets. She was married to Charles L. Grant from February 1982 until his death in 2006. She has also edited several anthologies of short stories. Her short story "Each Night, Each Year" was nominated for the 1989 Bram Stoker Award for Best Short Fiction.