World's Best Science Fiction: 1971

World's Best Science Fiction: 1971 is an anthology of science fiction short stories edited by Donald A. Wollheim and Terry Carr, the seventh volume in a series of seven. It was first published in paperback by Ace Books in 1971, followed by a hardcover edition issued in September of the same year by the same publisher as a selection of the Science Fiction Book Club. It was followed in 1972 by The 1972 Annual World's Best SF, edited by Wollheim, and The Best Science Fiction of the Year, edited by Carr, the first volumes of two separate successor series,