Gemini Tracking, a GPS tracking company featuring the Gemtek

Project Gemini, the second U.S. manned spaceflight program

Gemini (robot), a Robot Wars competitor

Gemini disk drive, removal packs, made by Data General

Gemini, a download-only double live album by Einstürzende Neubauten

"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 twins, Castor and Pollux of Greek mythology

Gemini (astrology), the astrological sign

Gemini, a literally two-faced sorcerer and recurring villain in the animated series Thundarr the Barbarian

Isuzu Gemini, a car previously built by Isuzu

Gemini double decker buses manufactured by Volvo Wright Volvo in the United Kingdom for domestic use and overseas in Hong Kong.

Gemini Award, the Canadian awards ceremony

Gemini Ziekenhuis, a hospital in Den Helder, Netherlands

BGO Gemini, a Bulgarian gay organization

Gemini (Swedish band), a Swedish musical duo

Gemini (1999 film), the English name for Shinya Tsukamoto's 1999 J-Horror film Sôseiji

Gemini Observatory, northern and southern hemisphere twin large telescopes

Gemini Air Cargo, an airline of the United States

Gemini FM, a South-West England radio station

Gemini (constellation), one of the constellations of the zodiac

"Gemini" (Stargate SG-1), an episode of the television series Stargate SG-1

Gemini (roller coaster), a roller coaster at the Cedar Point amusement park

"Gemini" (song), a song by pinoy rock band Sponge Cola

Coleco Gemini, a clone of the Atari 2600 game system

Gemini (2002 film), a Tamil film starring Vikram and Kiran Rathod

Gemini, an album by Brian McKnight

Gemini (Gemini album), an album by Swedish musical duo Gemini

Gemini (Chinese band), a French-Chinese rock duo located in Beijing

Air Gemini, an airline of Angola

Gemini house, a turnable energy plus house in Austria

The Gemini chip, an updated version of the Apple Computer chip Mega II

"Gemini" (single), a single (not named after its A-side) by D'espairsRay

Gemini Sound Products, a manufacturer of professional DJ equipment known as 'Gemini DJ'

Gemini TV, a Telugu-language Indian television channel

Gemini (software), a bug tracking system by Countersoft

Gemini (a.k.a. Michael Horton), one of the original gladiators on the television series American Gladiators.

Gemini, a software system for code duplication analysis developed at Osaka University