80,000 Suspects is a 1963 British drama film directed by Val Guest and starring Claire Bloom, Richard Johnson, Yolande Donlan, and Cyril Cusack. It is based on the 1957 novel Pillars of Midnight by Elleston Trevor. An outbreak of smallpox in Bath, England, leads to a race to contain the virus.

Val Guest was an English film director and screenwriter. Beginning as a writer of comedy films, he is best known for his work for Hammer, for whom he directed 14 films, and for his science fiction films. He enjoyed a long career in the film industry from the early 1930s until the early 1980s.