The Game Boy Advance (GBA) is a 2001 handheld video game system developed by Nintendo.

GBA may also refer to:

Science and technology

• Generalized Büchi automaton, in automata theory, a variant of Büchi automaton
• Generic Bootstrapping Architecture, a cryptographic technology that enables the authentication of a user
• Glucocerebrosidase, a human enzyme
• GBA2, a gene which encodes for cytosolic beta-glucosidase
• GBA3, a gene which encodes for cytosolic beta-glucosidase
• Gut–brain axis, biochemical signaling between the gastrointestinal tract and the central nervous system

Organizations

• Gemeinsamer Bundesausschuss (Federal Joint Committee, G-BA), a public health decision-making body in Germany
• Geologische Bundesanstalt, the geological survey of Austria
• National data protection authority (Belgium) (GBA)
• Ghana Bar Association, a professional association in Ghana
• Giving Back to Africa, a Bloomington, Indiana non-profit organization
• Global Banking Alliance for Women, a non-profit organization concentrating on women's wealth
• Global Biofuel Alliance, an international organization for regulation, research and promotion for biofuel.
• Golaghat Bar Association, a voluntary bar association in India
• Governing Bodies Association, an organisation of governing bodies of independent schools in the UK
• Gute Bücher für Alle, a German charity which operates floating bookshops.
• Public Prosecutor General (Germany) (Generalbundesanwalt, GBA)

Companies

• Cahaba Government Benefit Administrators, subsidiary of Blue Cross and Blue Shield of Alabama
• Gramin Bank of Aryavart, a Regional Rural Bank in Uttar Pradesh, India
• Greater Bay Airlines, a low-cost carrier based in Hong Kong, China
• Greenbrier Academy for Girls, a therapeutic college preparatory boarding school in Pence Springs, West Virginia
• Groen Brothers Aviation, now Skyworks Global, an American autogyro research and development company
• KGBA (AM), a radio station (1490 AM) in Calexico, California, United States
• KGBA-FM, a radio station (100.1 FM) in Holtville, California, United States
• WGBA-TV, a television station in Green Bay, Wisconsin

People

• G. B. A. Coker, a former Judge of the Nigerian Supreme Court

Geography

• GBA, international vehicle country code for Alderney ('Great Britain: Alderney')
• Greater Buenos Aires, the urban agglomeration comprising the autonomous city of Buenos Aires and the adjacent 24 partidos
• GBA, IATA airport code for Cotswold Airport in the United Kingdom
• Guangdong-Hong Kong-Macau Greater Bay Area, often simply referred to as the Greater Bay Area

Music

• "G.B.A.", a song on Solace (Xavier Rudd album)
• God Bless America, American patriotic song written by Irving Berlin

Sports

• Geelong Baseball Association, an Australian baseball association and league
• Global Basketball Association, minor league in the United States in the early 1990s
• Guam Basketball Association, Guam's professional basketball league

Process

• Gender-based Analysis, a management process to explore the changing realities and inequalities based on gender

Other uses

• Game Boy Advance SP, a redesign of the Game Boy Advance, released in 2003