The 1975 Annual World's Best SF is an anthology of science fiction short stories edited by Donald A. Wollheim and Arthur W. Saha, the fourth volume in a series of nineteen.

The 1975 Annual World's Best SF was first published in paperback by DAW Books in May 1975, 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.

The paperback edition was reissued by DAW in December 1980 under the variant title Wollheim's World's Best SF: Series Four, this time with cover art by Vicente Segrelles.

A British hardcover edition was published by The Elmfield Press in November 1976 under the variant title The World's Best SF Short Stories No.

The book collects ten novellas, novelettes and short stories by various science fiction authors, with an introduction by Wollheim.