Books
* '' Batman: The Killing Joke'', a Batman graphic novel published in 1988 * ''The Killing Joke'' (novel), a novel by Anthony Horowitz first published in 2004Music
* Killing Joke, an English punk rock band formed in 1979 ** ''Killing Joke'' (1980 album), their debut album ** ''Killing Joke'' (2003 album), their 2003 albumFilm
* ''Batman: The Killing Joke'' (film), a 2016 animated feature based on the 1988 graphic novelSee also
* " The Funniest Joke in the World", a Monty Python sketch *