The 1990 Annual World's Best SF is an anthology of science fiction short stories edited by Donald A. Wollheim and Arthur W. Saha, the nineteenth volume in a series of nineteen.

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

"Alphas" placed twenty-first in the 1990 Locus Poll Award for Best Short Story.

"Abe Lincoln in McDonald's" placed eighth in the 1990 Locus Poll Award for Best Short Story.

"A Sleep and a Forgetting" placed nineteenth in the 1990 Locus Poll Award for Best Novelette.