Miscellaneous
- Young Patriots (Basque Country) aka Gazte Abertzaleak, the youth organization of Eusko Alkartasuna
- Galaxy Angel, a 2001 animated television series with an associated game and manga
- Gamblers Anonymous, a support group for recovering gamblers
- General of the Army, a five star General
- See Aviva for General Accident, a financial services firm, now part of the Aviva group.
- General assembly (disambiguation), an official session of the members of a union, church, association, or similar organization.
- United Nations General Assembly, the main deliberative organ of the United Nations.
- Presbyterian General Assembly, the chief governing body of the Presbyterian Church.
- General Assistance Governmental aid frequently issued to homeless and mental-health patients, for temporary and long-term assistance
- General authority, a governing body of approximately 100 men in The Church of Jesus Christ of Latter-day Saints (LDS church)
- Germantown Academy, the oldest nonsectarian day school in the United States
- The TDD acronym for "Go Ahead".
- Go-Ahead Group a rail and bus operating company.
- Go Ahead Eagles, a football club from Deventer, Netherlands
- Google Analytics, a free service offered by Google that generates detailed statistics about the visitors to a website
- Greening Australia, an Australian conservation organization
- Graduate assistant, a position serving a support role (assistantship) at a university, usually while completing post-graduate education
- Gridiron Australia, national sporting body for American Football in Australia
- Ga-rei, an ongoing supernatural action manga
- GA Geijutsuka Art Design Class, an ongoing 2004 manga series by Satoko Kiyuduki
- Ghost Adventures, a science paranormal investigating series by Travel Channel
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