• Germanische Glaubens-Gemeinschaft, a German religious organization
• East Texas Regional Airport, IATA airport code GGG
• Graco (baby products), a company listed on the New York Stock Exchange as GGG
• Gross, Geil und Grandiose, ASAC BOTS team

Technology:

• Giant Global Graph, matching WWW, notably used the first time by Web inventor Sir Tim Berners-Lee
• GPS, Glonass, Galileo positioning system Global positioning systems
• Gadolinium gallium garnet is used in fabrication of optical and magnetic components

Entertainment:

• Guns, God and Government, a live DVD from the band Marilyn Manson
• Gunnar Graps Group, an Estonian rock-group formed by Gunnar Graps
• The King of Braves GaoGaiGar, a mecha anime released by the company Sunrise
• Good, Giving and Game, a phrase coined by Dan Savage in his sex-advice column Savage Love
• German Goo Girls, a pornographic movie series by Munich producer John Thompson
• Golomb's Graceful Graphs, Golomb, S.W., "Checkerboards and Polyominoes", The American Mathematical Monthly, Vol. 61, No. 10, December, 1954.