Donald Malcolm (1930-1975) was a Scottish science fiction author of science fiction and fact who was active as a writer from the mid 1950s through his death in the mid 1970s. Some of his nonfiction was written under the pen name Roy Malcolm.
Malcolm's work was published in the magazines New Worlds, Nebula Science Fiction, Astounding Science Fiction, the anthology series New Writings in SF, and the anthologies Out of This World 4 (1964), Lambda I and Other Stories (1965), and Starfield (1989). His reviews appeared in the magazine Vector.
Much of Malcolm's short fiction falls into two sequences, the "Preliminary Exploration Team" and the "Dream Background" stories. Neither series has been collected. His novels, both published by Laser Books, have been described as "routine."