Gemini may refer to In astronomy and space exploration:
- Gemini (constellation), one of the constellations of the zodiac
- Gemini (astrology), the astrological sign
- Project Gemini, the second U.S. manned spaceflight program
- Gemini Observatory, northern and southern hemisphere twin large telescopes
In film and television:
- Gemini (2002 film), a Tamil film starring Vikram and Kiran Rathod
- Gemini Award, the Canadian awards ceremony
- Gemini TV, a Telugu-language Indian television channel
- "Gemini" (Stargate SG-1), an episode of the television series Stargate SG-1
- Gemini (1999 film), the English name for Shinya Tsukamoto's 1999 J-Horror film Sôseiji
- "Gemini", an episode of the television series Nowhere Man (TV series), as well as the name of the project surrounding Thomas Veil throughout the course of that series
- Gemini, a literally two-faced sorcerer and recurring villain in the animated series Thundarr the Barbarian
- Gemini (a.k.a. Michael Horton), one of the original gladiators on the television series American Gladiators.
In music:
- Gemini (Swedish band), a Swedish musical duo
- Gemini (Gemini album), an album by Swedish musical duo Gemini
- Gemini (Chinese band), a French-Chinese rock duo located in Beijing
- Gemini, a download-only double live album by Einstürzende Neubauten
- "Gemini" (single), a single (not named after its A-side) by D'espairsRay
- "Gemini" (song), a song by pinoy rock band Sponge Cola
- Gemini FM, a South-West England radio station
Other uses:
- BGO Gemini, a Bulgarian gay organization
- Gemini twins, Castor and Pollux of Greek mythology
- Gemini Ziekenhuis, a hospital in Den Helder, Netherlands
- Gemini double decker buses manufactured by Volvo Wright Volvo in the United Kingdom for domestic use and overseas in Hong Kong.
- Gemini inflatable boat, manufactured by Gemini Marine Industres (UK) or Gemini Inflatables (Australia)
- Gemini (roller coaster), a roller coaster at the Cedar Point amusement park
- Gemini, an album by Brian McKnight
- Gemini Sound Products, a manufacturer of professional DJ equipment known as 'Gemini DJ'
- Gemini (software), a bug tracking system by Countersoft
- Gemini, a software system for code duplication analysis developed at Osaka University
- Gemini house, a turnable energy plus house in Austria
- Gemini Tracking, a GPS tracking company featuring the Gemtek
- Coleco Gemini, a clone of the Atari 2600 game system
- Isuzu Gemini, a car previously built by Isuzu
- Air Gemini, an airline of Angola
- Gemini Air Cargo, an airline of the United States
- The Gemini chip, an updated version of the Apple Computer chip Mega II
- Gemini disk drive, removal packs, made by Data General
- Gemini (robot), a Robot Wars competitor
- Gemini Catamaranan American made production catamaran, various models since 1981 (3000, 3200, 3400, 105M, 105Mc),
