Key

• Key (cryptography), a piece of information needed to encode or decode a message
• Key (instrument), a component of a musical instrument
• Key (lock), a device used to operate a lock
• Key (map), a guide to a map's symbology
• Key (music), the scale of a piece of music
• Key on a typewriter or computer keyboard

Films

• The Key (1934 film), an American pre-Code film
• The Key (1958 film), starring William Holden and Sophia Loren
• The Key, also known as Odd Obsession, a 1959 Japanese comedy drama
• The Key (1961 film), a Soviet animated feature
• The Key (1965 film), a Croatian omnibus film
• The Key (1971 film), a Czechoslovakian drama
• The Key (1983 film), an Italian erotic film
• The Key (1987 film), an Iranian film
• The Key (2007 film), a French thriller film
• Key (film), a 2011 Telugu-language psychological thriller
• The Key (2014 film), an American erotic drama film

Literature

• The Key (Curley novel), by Marianne Curley, 2005
• The Key (Elfgren and Strandberg novel), by Mats Strandberg and Sara Bergmark Elfgren, 2013
• The Key (Tanizaki novel), by Jun'ichirō Tanizaki, 1956
• "The Key" (short story), by Isaac Asimov, 1966
• The Key: A Startling Enquiry into the Riddle of Man's Past, a 1969 book by John Philip Cohane
• The Key, a magazine published by Kappa Kappa Gamma
• "The Key", a short story by Satyajit Ray
• The Keys (journal), of the League of Coloured Peoples founded in 1933

Music

Bands

• The Keys (English band), 1979–1983
• The Keys, a Welsh band successor to Murry the Hump

Albums

• Key (Meredith Monk album), 1971
• Key (Son, Ambulance album), 2004
• The Key (Joan Armatrading album), 1983
• The Key (Vince Gill album), 1998
• The Key (Nocturnus album), 1990
• The Key (Operation: Mindcrime album), 2015
• Keys (album), by Alicia Keys, 2021
• The Keys (EP), by GWSN, 2020

Songs

• "The Key" (Speech Debelle song), 2009
• "The Key" (Matt Goss song), 1995
• "The Key", a song by Ou Est Le Swimming Pool from the 2010 album The Golden Year
• "Key", a song by Band-Maid from the 2014 album Maid in Japan
• "The Key", a 2010 song by Edita Abdieski
• "Key", a song by C418 from the 2011 album Minecraft – Volume Alpha
• "Key", a song by Porter Robinson from the 2017 EP Virtual Self

Television

• "The Key", a Code Lyoko episode, 2005
• "The Key" (Fear the Walking Dead), 2020
• "The Key", an episode of Prison Break (season 1), 2006
• "The Key" (The Walking Dead), 2018
• "The Key", an episode of Yes, Prime Minister, 1986
• "The Keys" (Seinfeld), a 1992 TV episode

Other uses in arts, entertainment and media

• Key (character), a supervillain in the DC Comics universe
• Key, the title character of Key the Metal Idol, a Japanese original video animation series
• The Key, a painting by Jackson Pollock

• Key (surname), including a list of people with the surname
• Keys (surname), including a list of people with the surname
• Key (entertainer) (born 1991), South Korean entertainer

• Cay, or key, a small island on the surface of a coral reef
  • Key Cay, British Virgin Islands

United States

• Key, Alabama
• Key, Ohio
• Key, West Virginia
• Keys, Oklahoma
• Florida Keys

Elsewhere

• The Keys, Newfoundland and Labrador, Canada
• Rural Municipality of Keys No. 303, Saskatchewan, Canada
• Key, Iran, a village in Isfahan Province, Iran
• Key Island, Tasmania, Australia
• The Key, New Zealand, a locality of Mararoa, New Zealand

• Candidate key, or simply a key, in relational database management systems
  • Unique key
• Key (engineering), a machine element used to connect a rotating machine element to a shaft
• KeY, a tool is used in formal verification of Java programs
• The Key (smartcard), a British smartcard for public transport ticketing
• .key, file extension used by Keynote presentation software
• Identification key, used to identify biological entities
• Telegraph key, or Morse key, a specialized electrical switch

• Key (basketball), a marked area on a basketball court
• Frederick Keys, an American baseball team

• Key (company), a Japanese visual novel studio
• Key Airlines, an American former airline
• Key School, in Annapolis, Maryland, U.S.
• Keys, a truce term used in western Scotland
• Amazon Key, a service by Amazon Prime
• House of Keys, the lower branch of the parliament of the Isle of Man
• Samara (fruit), or key, a type of fruit
• Yeoman Warders Club in the Tower of London, or "The Keys"
• KeyBank, an American regional bank based in Cleveland, Ohio

• All pages with titles beginning with Key
• All pages with titles containing Key
• Keay, a surname
• Keays, a surname
• Keyes (disambiguation)
• Keying (disambiguation)
• Qi (disambiguation)
• Quay (disambiguation)
• Keyboard instrument