GAA

GAA may refer to:

Gaelic Athletic Association, governing body of Gaelic games such as hurling and Gaelic football
Gay Activists Alliance, New York City gay rights organization 1969-81
Gemmology Association of Australia, an educational organisation based in Sydney
General Appropriation Act, the legislative act used in some countries for a national or state budget
Generic Authentication Architecture, a mobile phone specification
Glacial (water-free) acetic acid
Global Action on Aging, a non-profit organization based at the United Nations
Global Accounting Alliance, an accounting organization
Goals against average, goalkeeping statistic used by several sports and many leagues
Acid alpha-glucosidase, also known as glucosidase, alpha; acid, an enzyme
a codon for glutamic acid
ICAO airline code for Business Express Airlines
Ga language, ISO 639-2 code gaa
The Argentine Army unit GADA 601, Grupo de Artillería Antiaérea 601 (Anti-Aircraft Artillery Group 601)

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