Through the Looking Glass is an 1987 album from Siouxsie & the Banshees containing cover versions of songs written and originally performed by other artists.

"Through the Looking Glass" is an episode of Star Trek: Deep Space Nine, the 19th episode of the third season. In the sadistic, evil, and brutal Mirror Universe, Benjamin Sisko must assume the role of his dead counterpart in order to save the mirror version of his late wife. It is also the first DS9 episode to feature a regular character from the Star Trek: Voyager series, as Tuvok (played by Tim Russ) is a member of the Terran Rebellion in the Mirror Universe.

Through the Looking Glass is the 11th album by the American band Toto. It was released in 2002, three years after the previous release of the band. The album consists of covers of songs that have inspired the band.

Through The Looking Glass is a 1976 experimental film and underground film directed by Jonas Middleton and released by Sam Lake's Mature Pictures Corp. film production company. The film stars Catherine Erhardt (better known for her role in Al Adamson's 1977 comedy Cinderella 2000) who is credited as "Catherine Burgess" after the character she plays in the film and Jamie Gillis. The film also features an original musical score by Harry Manfredini and Arlon Ober who both became famous for composing the music to countless horror films in the 1980s and 1990s.

"Through the Looking Glass" is the seventeenth episode of season one of the television program Farscape, written by David Kemper and directed by Ian Watson.