X (disambiguation)

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X is the 24th letter of the Latin alphabet.

X may also refer to:

Art, entertainment, and media[edit]

Fictional entities[edit]


Video games[edit]

  • X (1992 video game) (エックス, Ekkusu), an early 3D game for Nintendo's Game Boy console released only in Japan
  • X (game series), a science fiction space simulator series by Egosoft
  • X (Xbox show), an annual trade show hosted by Microsoft to showcase Xbox merchandise
  • Pokémon X, one of the two paired Pokémon X and Y games for the Nintendo 3DS


  • X (book), subtitled Writings ’79–’82, a book by avant garde composer John Cage
  • X (magazine), a quarterly review of literature and the arts
  • X (manga), a 1992 Japanese manga, anime film, and anime television series
  • X (novel), the twenty-fourth novel in Sue Grafton's "Alphabet mystery" series, published in 2015
  • X: A Fabulous Child's Story, a 1972 short story and 1978 picture book by Lois Gould
  • X: Or, Betty Shabazz v. The Nation, a 2017 play by Marcus Gardley
  • 'X' Stands for Unknown, a collection of nonfiction science essays by Isaac Asimov, published in 1984







  • KHTI, formerly KCXX, known as "The 'X' at 103.9 FM", a rock n' roll radio station in the Inland Empire, Southern California
  • KTHX-FM, also known as "The 'X' at 100.1 FM", a rock n' roll radio station in Reno, Nevada
  • WNFZ, also known as "94.3 the X", a modern rock radio station in Knoxville, Tennessee
  • WQXA, also known as 105.7 "The 'X'", a modern rock radio station in Harrisburg, Pennsylvania
  • WXDX-FM, also known as "The 'X' at 105.9", a modern rock radio station in Pittsburgh, Pennsylvania
  • WXLV (FM), former call sign brandeds as "90.3 "The X"", a college radio station in Allentown, Pennsylvania
  • WXNY-FM, known as "La X 96.3", a Spanish radio station in New York City
  • WZDA, formerly known as "103.9 The 'X'", a modern rock radio station in Dayton, Ohio

Roller coasters[edit]


  • Kamen Rider X, a Japanese television series and part of the Kamen Rider franchise
  • The X (TV series), a Canadian children's television program produced by the Canadian Broadcasting Corporation
  • The X's, an American animated television series
  • WXSP-CD, a Class-A television station in Grand Rapids, Michigan branded as "The X"
  • X, the production code for the 1966 Doctor Who serial The Ark

Businesses and organizations[edit]



Other organizations[edit]

  • X (demo party), a Dutch demoscene party which started in 1995
  • Organization X, a pro-royalist and anti-communist guerrilla group, active during the Axis occupation of Greece and the Greek Civil War



In arts and entertainment[edit]

  • Director X (born 1975), Canadian music video director also known as X and Little X
  • Princess X (musician), former stage name of musician Liza Fox
  • XXXTentacion (1998–2018), American rapper commonly referred to as "X"
  • DMX (rapper) (1970–2021), American rapper commonly referred to as "X"
  • Shaun Ryder (born 1962), English musician and singer–songwriter, sometimes uses the pseudonym X
  • Terminator X (born 1966), the stage name for American DJ Norman Roberts who worked with Public Enemy
  • X, ring name of wrestler Carl Ouellet (born 1967)

Other people[edit]

  • Clyde X (1931–2009), Nation of Islam official
  • Khoisan X (1955–2010), political activist
  • Laura X (born 1940), feminist historian
  • Malcolm X (1925–1965), civil rights activist
  • Michael X (1933–1975), activist and criminal
  • X, the girl in the X Case, a landmark court case about abortion in Ireland
  • X, the pseudonym under which the "X Article", formally titled "The Sources of Soviet Conduct", was published in Foreign Affairs magazine
  • X, surname often assumed by members of the Nation of Islam

Science, technology, and mathematics[edit]



  • × (or x), in binomial nomenclature as part of a hybrid name in botany
  • X chromosome, one of the two sex-determining chromosomes in many animal species, including mammals


  • X, the pseudoelement symbol for a halogen or halide in organic chemistry; see Skeletal formula


  • X (writing speed), the speed at which data is written to an optical disc
  • OS X (pronounced 'ten'), the former name of the macOS operating system for Apple computers
  • X Window System, a client-server display protocol often used in UNIX environments
  • X file format, file format used by DirectX



  • X (charge), a conserved quantum number in particle physics
  • X band, part of the microwave band of the electromagnetic spectrum
  • X unit (X), in physics

Other uses[edit]

See also[edit]