Heart of the Night () is a short novel by Egyptian novelist Naguib Mahfouz. It consists of 155 pages and was first published by The Library of Egypt in 1975. Dar Shorouq reprinted the novel in 2006.
The novel was adapted into a film in 1989, with its first screening on October 2 of the same year. The film was directed by Atef El-Tayeb and starred Farid Shawqi, Nour El-Sherif, Hala Sedky, Mahmoud el-Gendy, and several other actors.