X (disambiguation)

X is the twenty-fourth letter of the Latin alphabet.

X may also refer to:

Books and print

• X (magazine), a quarterly review of literature and the arts
• X (manga), a 1992 Japanese manga, anime film and anime television series
• X (Dark Horse Comics), a character and series by Dark Horse Comics
• X (Marvel Comics), a mutant character appearing in Marvel Comics
• X (novel), a Kinsey Millhone novel by Sue Grafton

Computing

• X, the name of the X Window System, a client-server display protocol often used in UNIX environments
• X Window System protocols and architecture, rules for communication between the former client and server
• X (writing speed), the speed at which data is written to an optical disc
• OS X, the current graphical operating system for Apple hardware
• X (file format), file format used by DirectX
• X, the letter commonly used in the buttons to close windows

Companies

• X (company), previously Google X, a subsidiary of Alphabet Inc. which specialises in research and development
• X, the stock symbol for United States Steel Corporation

Radio

• 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
• WXLV (FM), former call sign brandeds as "90.3 "The X"", a college radio station in Allentown, Pennsylvania
• KXXR, also known as "93X", an active rock radio station in Minneapolis, Minnesota
• WBSX, also known as 97.9X in Scranton/Wilkes-Barre/Hazelton, Pennsylvania
• 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
• WSUN-FM, also known as "97X", a modern rock radio station in Tampa, Florida
• WXDX-FM, also known as "The 'X' at 105.9", a modern rock radio station in Pittsburgh, Pennsylvania
• WZDA, formerly known as "103.9 The 'X'", a modern rock radio station in Dayton, Ohio
• WXLP, also known as "97X," a classic hits station in the Quad Cities, Iowa-Illinois, licensed to Moline, Illinois
• 99X (Atlanta), a modern rock radio station in Atlanta, Georgia now heard only on HD
• XETRA-FM, also known as "91X", a modern rock radio station in San Diego, California
• XFM is a commercial radio station in London and Manchester, UK, owned by Global Radio
• The initial letter of many stations originating in Mexico
• WROX-FM, also known as "96X," a modern rock radio station in Norfolk, Virginia

Film and television

Film

• X-rated, a rating given to films suitable for an adult-only audience
• X (1963 film), subtitled The Man with the X-Ray Eyes, an American science-fiction film
• X (1986 film), a Norwegian film direct by Oddvar Einarson
• X (2014 film), an Indian anthology film
• Malcolm X (1992 film), a film by Spike Lee promoted with the alternate title X
• Jason X, a 2001 American science fiction horror film
• X: Night of Vengeance, a 2011 film by Australian director Jon Hewitt

Television

• The X (TV series), a Canadian children's television program produced by the Canadian Broadcasting Corporation
• The X's, an American animated television series
• Kamen Rider X, a Japanese television series and part of the Kamen Rider franchise
• WXSP-CD, a Class-A television station in Grand Rapids, Michigan branded as "The X"
• X'ed, to be the victim of a hidden camera prank on The Jamie Kennedy Experiment

Language

• Chi (letter), the twenty-second letter of the Greek alphabet, often used to abbreviate "Christ"
• Kha (Cyrillic), a letter in the Cyrillic alphabet
• Ḫāʼ, a letter in the Arabic alphabet
• x is a symbol in the International Phonetic Alphabet for the voiceless velar fricative

Mathematics

• 10 (number) (Roman numeral: X)
• x, a common variable for unknown or changing concepts in mathematics
• Multiplication sign (× or ✕)
• Cross product or vector product (×)
• x, an axis in the Cartesian coordinate system

Music

Bands and artists

• X (American band), American punk band
• X (Australian band), Australian punk band
• X Japan, Japanese metal band, originally named X from 1982–1992
• Group X, British instrumental band from the 1960s
• Gröûp X, comical faux Saudi Arabian band who are actually American
• Shaun Ryder sometimes uses the pseudonym X (born 1962)
• Director X (born 1975), Canadian music video director also known as X and as Little X
• Liberty X, British pop vocal group
• Terminator X, the stage name for American DJ Norman Roberts who worked with Public Enemy

Albums

• X (Trace Adkins album), released in 2008 by Trace Adkins
• X (Kylie Minogue album), released in 2007 by Kylie Minogue
• X (K-Ci & JoJo album), released in 2000 by K-Ci & JoJo
• X (Kristeen Young album), released in 2004 by Kristeen Young
• X (INXS album), released in 1990 by INXS
• X (Def Leppard album), released in 2002 by Def Leppard
• X (Liberty X album), released in 2005 by Liberty X
• X (Klaus Schulze album), released in 1978 by Klaus Schulze
• X (Anna Vissi album), released in 2002 by Anna Vissi
• X (Spock's Beard album), released in 2010 by Spock's Beard
• X (Royal Hunt album), released in 2010 by Royal Hunt
• X (Ed Sheeran album) (read as "Multiply"), released in 2014 by Ed Sheeran
• X the album, Christian compilation album series released annually by Tooth and Nail Records since 2004
• X (Fourplay album), released in 2006 by Fourplay
• X (Gnags album), released in 1983 by Gnags
• X (Chris Brown album), released in 2014 by Chris Brown
• X (Roll Deep album), released in 2012 by Roll Deep
• X (The 69 Eyes album)
• X (Lucki mixtape), released in 2015 by Lucki

Songs

• "X" (Liberty X song)
• "X" (Xzibit song)
• "X", a song from the album Angels & Demons by Peter Andre
• "X", a song from the album The Magic Position by Patrick Wolf
• "X", a song from the album X by Chris Brown
• "X", a song from the album Pain Is Love by Ja Rule featuring Missy Elliott and Tweet
• "X", a song from the album Blue Blood by X Japan
• "X", a song from the album Future History by Jason Derulo
• "X", a song from the album Toxicity by System of a Down

People

• Clarence 13X, founder of the 5 Percent Nation
• Clyde X, Nation of Islam official
• Laura X, feminist historian
• Little X, also known as Lil X, a Canadian music video director
• Princess X (musician), former stage name of musician Liza Fox
• Malcolm X (1925–1965), civil rights activist
• Michael X (1933–1975), activist and criminal
• Khoisan X (1955–2010), political activist
• X, the girl in the X Case, a landmark court case about abortion in Ireland
• X, surname often assumed by members of the Nation of Islam
• X, ring name of wrestler Carl Ouellet

Fictional characters

• X (The X-Files), a character from the television series The X-files

Organizations

• Organization X, pro-royalist and anti-communist guerrilla group, active during the Axis occupation of Greece and the Greek Civil War
• The X, nickname for École Polytechnique, a French engineering school
• St. Francis Xavier University, a university in Antigonish, Nova Scotia

Science

• Reactance (electronics) (X), the imaginary part of electrical impedance
• X unit (X), in physics
• X-wave, a type of waveform
• X band, part of the microwave band of the electromagnetic spectrum
• X radiation, made up of X-rays (Roentgen radiation)
• X chromosome, one of the two sex-determining chromosomes in many animal species, including mammals
• X (charge), a conserved quantum number in particle physics
• Mole fraction (X)
• Planet X, a hypothesised planet in the outer solar system
• Galaxy X (galaxy), a dark galaxy
• Magnification (×), in optics
• × (or x), in binomial nomenclature as part of a hybrid name in botany
• X, a comet of unknown orbit
• Extension (x), the change in length of wire when force is applied to a it under Hooke's law
• X, the pseudoelement symbol for a halogen or halide in organic chemistry; See Skeletal formula

Video games

• X (game series), a science fiction space simulator series by Egosoft
• X (1992 video game) (エックス, Ekkusu), an early 3D game for Nintendo's Game Boy console released only in Japan
• X (Xbox show), an annual trade show hosted by Microsoft to showcase Xbox merchandise
• Dance Dance Revolution X, a 2008 music video game by Konami
• Mega Man X (character) (also known as "X"), the protagonist in the Mega Man X video game series
• X Parasite, a central subject of the 2002 game Metroid Fusion for Nintendo's Game Boy Advance handheld console
• 'Xenoblade Chronicles X', a game coming out for Nintendo's Wii U in 2015
• "Radio X" and "Channel X", the name of separate radio stations from Grand Theft Auto: San Andreas, and Grand Theft Auto V.
• Pokémon X, one of two paired games for the Nintendo 3DS in the Pokémon series

Other uses

• X mark, a common written symbol of negation or affirmation
• X, the pseudonym under which the "X Article", formally titled "The Sources of Soviet Conduct", was published in Foreign Affairs magazine
• X (automobile), a French car produced in 1908 and 1909
• X (book), subtitled Writings ’79–’82, a book by avant garde composer John Cage
• X (demo party), a Dutch demoscene party which started in 1995
• X, a handwritten symbol for a kiss
• X is a street name for the drug MDMA
• "Study No. X", a poem by Pierre Coupey
• X, the symbol for a strike in bowling
• X, often used by straight edgers to show their commitment to their lifestyle
• ╳, a box drawing character
• Ⓧ may refer to a typographical symbol in Japanese resale price maintenance
• X, sometimes used in acronyms and other abbreviations to represent the word "cross"
• X, the legal signature of an illiterate person
• X, a symbol used on a treasure map to show the location of the hidden treasure
• X (roller coaster), a roller coaster in Thorpe Park, England
• X² (roller coaster), the world's first spinning coaster, at Six Flags Magic Mountain
• The X may refer to the Xcel Energy Center, an arena in Saint Paul, Minnesota
• X (gender identity), used on passports and identification documents to denote intersex or indeterminate gender

See also

• Chi (disambiguation)
• Doctor X (disambiguation)
• Ex (disambiguation)
• Galaxy X (disambiguation)
• Miss X (disambiguation)
• Mister X (disambiguation)
• Model X (disambiguation)
• Professor X (disambiguation)
• Project X (disambiguation)
• Racer X (disambiguation)
• Saltire
• X marks the spot (disambiguation)
• XX (disambiguation)
• XXX (disambiguation)
• XXXX (disambiguation)