IGA or IgA may refer to:

Businesses and organizations

• IGA (supermarkets) (initially Independent Grocers Alliance), a name used by many independent supermarkets throughout the world
  • IGA (Australian supermarket group), the local Australian variant of the international IGA
• International Island Games Association, an organization that organizes the Island Games (a friendly competition between teams from several islands and other small territories)
• International Grenfell Association, an organization providing health care, education, religious and other services to the fishermen and coastal communities in Newfoundland and Labrador
• Interscope-Geffen-A&M, an American record label
• Irish Games Association, a non-profit body which is dedicated to promoting gaming in Ireland
• International Gay Association, the original name of the International Lesbian, Gay, Bisexual, Trans and Intersex Association

In government

• Illinois General Assembly
• Indiana General Assembly
• Iowa General Assembly

In science and technology

• Immunoglobulin A (IgA), an antibody playing a critical role in mucosal immunity
• Intergranular attack, another term for intergranular corrosion (a form of corrosion where the boundaries of crystallites of the material are more susceptible to corrosion than their insides)

Other uses

• Identity Governance and Administration, the organisational policies, processes and procedures controlling identity management
• In-game advertising, the use of computer and video games as a medium in which to deliver advertising
• International Gamers Award, an award for strategy board games and historical simulation games
• Islamic Golden Age, a period in the history of the Muslim world
• Koji Igarashi, a Japanese video game producer, nicknamed IGA

See also

• Iga (disambiguation)

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