X1 or X-one may refer to:

Transportation

Automobiles

  • BMW X1, a 2009–present German subcompact luxury SUV
  • Geely Yuanjing X1, a 2017–2021 Chinese mini crossover
  • Red Bull X1, the former name of the Red Bull X2010, a fictional car created for the game Gran Turismo 5
  • Wrightspeed X1, a 2008 electric sports car prototype based on the Ariel Atom

Bus routes

  • X1 (Metrobus), a bus route in Washington, District of Columbia, United States
  • X1 (New York City bus), a bus route in New York City, New York, United States
  • X1 Steel Link, a bus rapid transit service between Sheffield, Rotherham, and Maltby in England, United Kingdom
  • Excel X1, a bus route from Lowestoft to Peterborough in England, United Kingdom
  • X1 Glasgow–Hamilton, a former bus route in Scotland
  • Green Line routes X1 and X10, a former coach route from Southend-on-Sea to London

Rail transport

  • SL X1, a former Swedish commuter train built by ASEA
  • LNER Class X1, a single locomotive rebuilt several times in its history

Watercraft

  • X1 (dinghy), a fast, light-weight sailing dinghy designed for inland racing
  • HM Submarine X1, a Royal Navy submarine

Aircraft

  • Bell X-1, an experimental rocket plane

Technology

  • Sharp X1, a Japanese home computer manufactured by the Sharp Corporation
  • Xbox One, a video game console
  • a one-lane PCI Express slot
  • Cray X1, a supercomputer sold in the 2000s
  • Electrologica X1, an early Dutch computer
  • Sony Ericsson Xperia X1, a mobile phone
  • ThinkPad X1 series, a line of notebook computers first released by Lenovo in 2012
  • X1 Discovery a software company formerly known as X1 Technologies, Inc.
  • Tegra X1, a system on a chip released by Nvidia in 2015
  • X1, an IPTV-based cable television hardware platform developed by Comcast

Arts, entertainment, and media

  • X1 (band), a South Korean boy band formed through Produce X 101
  • X1 (rapper) (1979–2007), American rapper
  • X Minus One, a 1950s American radio show
  • X-Men (film), the first film in the X-Men franchise
  • X-One, monthly magazine produced by Imagine Publishing

Other

  • x<sup> −1</sup>, the multiplicative inverse of x (another way to denote 1⁄x, one divided by x)
  • United States patent X1, by Samuel Hopkins (inventor)
  • X1 (Egyptian hieroglyph t), an extremely common alphabetic letter in the Ancient Egyptian alphabet
  • X1, a former sister MMA promotion of the defunct Fighting of World Japan Pro Wrestling

See also

  • X-1 (disambiguation)
  • 1X (disambiguation)