Surely You're Joking, Mr. Feynman! is an edited collection of reminiscences by Richard Feynman, a Nobel Prize-winning physicist. It expounds upon his human side with a number of personal and mostly humorous anecdotes, detailing everything from his forays into hypnotism to his experiences in topless bars, as well as more serious topics such as the development of the atomic bomb and the death from tuberculosis of Feynman's first wife, Arlene.

The anecdotes were edited from taped conversations Feynman had with fellow scientist and friend, Ralph Leighton . Its surprise success, having sold more than 500,000 copies, led to a sequel entitled What Do You Care What Other People Think?, also taken from Leighton's taped conversations.