Gardner Dozois (born July 27, 1947) is an American science fiction author and editor. Since 1985 he has been editor of Asimov's Science Fiction magazine.

A subtle writer with a distinctive prose style who has mainly worked in shorter forms, he has won the Nebula Award for best short story twice -- for "The Peacemaker" in 1983, and for "Morning Child" in 1984. His short fiction has been collected in The Visible Man (1977), Geodesic Dreams (a best-of collection), Slow Dancing through Time (1990, collaborations), and Strange Days (2001, another best-of collection).

A solo novel, Strangers (1978), and a collaboration with George Alec Effinger, Nightmare Blue (1977), represent his novel-length output. Since becoming editor of Asimov's, Dozois's fiction output has dwindled.

Dozois has won a record 13 Hugo Awards for Best Professional Editor, having won nearly every year since 1988.

In addition to his Asimov's gig, he is the editor of the anthology series The Year's Best Science Fiction, published annually since 1984. And, with Jack Dann, he has edited a long series of themed anthologies, each with a self-explanatory title such as Cats, Dinosaurs, Seaserpents, or Hackers.

A book-length interview by Michael Swanwick, covering each published piece of fiction Dozois ever wrote, came out in 2001 under the title Being Gardner Dozois.