Fear in the Night (also known as Dynasty of Fear and Honeymoon of Fear) is a 1972 British psychological horror film directed, produced, and co-written by Jimmy Sangster, produced by Hammer Film Productions, and starring Judy Geeson, Joan Collins, Peter Cushing, and Ralph Bates. It focuses on a psychologically-fragile woman who, upon relocating to a rural boarding school where her husband has taken a job, finds herself being tormented by a mysterious figure with a prosthetic arm.

Like many horror films of its era, Fear in the Night has been noted for its usage of female hysteria as a central narrative motif, and was released as a double bill in the United Kingdom with Straight on Till Morning, another Hammer film featuring similar themes. In the United States, the film was released as part of a double bill with Demons of the Mind.