The
John W. Campbell Memorial Award for Best Science Fiction Novel, or Campbell Memorial Award, is an annual award presented by the
Center for the Study of Science Fiction at the
University of Kansas to the author of the best science fiction novel published in English in the preceding calendar year. It is the novel counterpart of the
Theodore Sturgeon Award for best short story, awarded by the same organization. The award is named in honor of
John W. Campbell (1910–71), whose science fiction writing and role as editor of
Analog Science Fiction and Fact made him one of the most influential editors in the early history of science fiction. The award was established in 1973 by writers and critics
Harry Harrison and
Brian Aldiss "as a way of continuing his efforts to encourage writers to produce their best possible work."
Locus Magazine listed it as one of the "major awards" of written science fiction.