World's Best Science Fiction: 1970

World's Best Science Fiction: 1970 is an anthology of science fiction short stories edited by Donald A. Wollheim and Terry Carr, the sixth volume in a series of seven. It was first published in paperback by Ace Books in 1970, 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 and a British hardcover edition issued in November of the same year by Gollancz.