The Narrator is a fictional character and the protagonist and main antagonist of the 1996 Chuck Palahniuk novel Fight Club, its 1999 film adaptation of the same name, and the comic books Fight Club 2 and Fight Club 3. The character is an insomniac with a split personality, and is depicted as an unnamed everyman during the day, who becomes the chaotic and charismatic Tyler Durden at night during periods of insomnia.

Fight Club is a 1996 novel by Chuck Palahniuk. It was Palahniuk's first published novel, and follows the experiences of an unnamed protagonist struggling with insomnia. The protagonist finds relief by impersonating a seriously ill person in several support groups, after his doctor remarks that insomnia is not "real suffering" and that he should find out what it is really like to suffer. The protagonist then meets a mysterious man named Tyler Durden and establishes an underground fighting club as radical psychotherapy.