"Johari Window" is the 11th episode of the second season of the American science fiction drama television series Fringe. It was released three days after the bonus special episode, "Unearthed". The episode, written by co-executive producer Josh Singer and directed by filmmaker Joe Chappelle, is set in a fictional upstate New York town and begins with the discovery of a seemingly deformed child by a state trooper. The Fringe investigative team of Olivia Dunham, Walter Bishop, and Peter Bishop arrives on the scene, only to discover a secret government experiment gone awry, with signs from Walter's past.

Fringe is an American science fiction television series created by J. J. Abrams, Alex Kurtzman, and Roberto Orci. It premiered on the Fox television network on September 9, 2008, and concluded on January 18, 2013, after five seasons comprising 100 episodes. An FBI agent, Olivia Dunham ; a genius but dysfunctional scientist, Walter Bishop ; and his son with a troubled past, Peter Bishop, are all members of a newly formed Fringe Division in the Federal Bureau of Investigation. Based in Boston, Massachusetts, the team uses fringe science to investigate a series of unexplained and often ghastly occurrences which are related to a parallel universe.