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 and produced by Hammer Film Productions. The film stars Judy Geeson as 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. Peter Cushing and Joan Collins, respectively, also star as the school's mysterious headmaster and his wife.

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.