X3 may refer to:
Arts, entertainment, and media
editFilms
edit- X-Men: The Last Stand, also known as X3 and X-Men 3, the third film in the comic book film series
- XXX: Return of Xander Cage, a 2017 American film directed by D. J. Caruso
Literature and publications
edit- X3, a collection of three science fiction novellas by Gary A. Braunbeck
Music
edit- X3 (group), a short-lived Australian girl group, circa 2000
- X3 (album), a 2004 solo album by Japanese pop singer Aya Matsuura
Video games
edit- X-Men: The Official Game, a 2006 videogame prequel to X-Men: The Last Stand
- X³: Reunion, a space simulation computer game
- X³: Terran Conflict, a sequel to X³: Reunion
- X³: Albion Prelude, an addon to X³: Terran Conflict
- X³: Terran Conflict, a sequel to X³: Reunion
- Dance Dance Revolution X3, a 2011 music video game by Konami
- Mega Man X3, a 1995 platforming game in Capcom's Mega Man X series
Electronics
editInstruments
edit- Korg X3, a synthesizer
Phones
edit- Kyocera X3, an Android One smartphone by Kyocera
- Mobile phone models by Nokia
- Nokia X3-00 or Nokia X3
- Nokia X3 Touch and Type or Nokia X3-02
Sensors
edit- Foveon X3 sensor, a layered image sensor design
Mathematics, science, and technology
editAstronomy
edit- Cygnus X-3, a binary x-ray source in the sky
Computer science
edit- X3, one former name of a subcommittee of ANSI, now International Committee for Information Technology Standards (INCITS)
- X3 (code) aka Excess-3, a binary code also termed Stibitz code
- XKO X3, an ERP software
Mathematics
edit- X3, the mathematical cubic function
Transportation
editAircraft
edit- Douglas X-3 Stiletto, an experimental jet aircraft
- Eurocopter X3, an experimental compound helicopter under development by Eurocopter
Automobiles
edit- Beijing X3, a Chinese subcompact crossover SUV
- BMW X3, a German compact SUV
- Cowin X3, a Chinese compact SUV
- Geely Vision X3, a Chinese subcompact crossover
- Jingyi X3, a Chinese subcompact crossover
Bus routes
edit- X3 (New York City bus)
- X3, a Metrobus route in Washington, D.C. U.S.
IATA codes
edit- TUI fly Deutschland (IATA airline designator X3 since 2007)
- Hapag-Lloyd Express (IATA airline designator X3, 2002-2007)
Motorcycles
edit- Ilmor X3 (also termed the X³), a MotoGP race motorbike
Spacecraft
edit- X-3, the Prospero (satellite) launched by the UK in 1971
Trains
edit- X3 (train), a Swedish train built by Alstom
Watercraft
edit- HMS X3, an X-class submarine of the Royal Navy