Men Against the Stars is a 1950 anthology of science fiction short stories edited by Martin Greenberg, originally published in hardcover by Gnome Press. A British hardcover was issued by Grayson & Grayson in 1951. Pyramid Books published several abridged paperback versions in the late 1950s and early 1960s. It was the first “theme” anthology in science fiction, where all stories are about a common idea, setting, or concept. All the stories, save one, had originally appeared in the magazine Astounding. The other story, "When Shadows Fall", first appeared in Startling Stories.