A twin is one of two offspring produced in the same pregnancy.

Twin may also refer to:

  • Twin, Alabama, a city in the United States
  • Twin, Belgium, Walloon name of the Belgium city of Thuin
  • Twin (production team), a Swedish record production and songwriting team
  • Twin (TV series), a Norwegian television crime drama series from 2019
  • Twin (windowing system), a windowing environment for text mode displays
  • "Twin (song)", a song by Roddy Ricch featuring Lil Durk
  • "Twin", a song from the album Ruby by Jennie
  • Twin pattern, a software design pattern
  • Willows TWIN, a Windows emulator
  • Twin, a member of the Minnesota Twins baseball team
  • Flat-twin engine
  • V-twin engine
  • Straight-twin engine, also referred to as a parallel-twin
  • Crystal twin, a crystal sample with two domains containing a twin boundary
  • Twin house, semi-detached housing
  • Twin towns and sister cities, towns and cities involved in town twinning
  • Gemini Twin, an American two-seat powered parachute design
  • Air Creation Twin, a French two seat ultralight trike design

Surname

  • Peter J. Twin (born 1937), English nuclear physicist

See also

  • Twin paradox, a thought experiment
  • Twin prime, a type of prime number
  • Twin Range, a mountain range in the U.S. state of New Hampshire
  • Twin Cone, a volcanic cone in British Columbia, Canada
  • Twinning (disambiguation)
  • Twins (disambiguation)
  • The Twin (disambiguation)
  • Twin Sisters (disambiguation)
  • Gemini (disambiguation)