Captain Future is a pulp science fiction hero – a space-traveling scientist and adventurer – originally published in the United States in his his namesake pulp magazine from 1940 to 1944. The character was created by editors Mort Weisinger and Leo Margulies. The majority of the stories were authored by Edmond Hamilton. A number of adaptations and derivative works followed.

Pulp magazines were inexpensive fiction magazines that were published from 1896 until around 1955. The term "pulp" derives from the cheap wood pulp paper on which the magazines were printed. In contrast, magazines printed on higher-quality paper were called "glossies" or "slicks". The typical pulp magazine had 128 pages; it was 7 inches (18 cm) wide by 10 inches (25 cm) high, and 0.5 inches (1.3 cm) thick, with ragged, untrimmed edges. Pulps were the successors to the penny dreadfuls, dime novels, and short-fiction magazines of the 19th century.