"The Chimes of Big Ben" is an episode of the allegorical British science fiction TV series, The Prisoner. It was written by Vincent Tilsley and directed by Don Chaffey and fifth to be produced. It was the second episode to be broadcast in the UK on ITV (ATV Midlands and Grampian) on Friday 6 October 1967 and first aired in the United States on CBS on Saturday 8 June 1968.