Memento Mori is a novel by Scottish author Muriel Spark published by Macmillan in 1959. The title, references a common trope. This is represented in the novel by a series of insidious phone calls made to the elderly Dame Lettie Colston and her acquaintances. The recipients reflect on their past lives while they try to identify who is making the calls and why.

Dame Muriel Sarah Spark was a Scottish novelist, short story writer, poet and essayist.