GBA may refer to:

• Alderney's international vehicle country code ('Great Britain: Alderney')
• Game Boy Advance, a handheld video game system
• Generic Bootstrapping Architecture
• Geologische Bundesanstalt, the geological survey of Austria
• Global Business Assist, a micro-development organization
• God Bless America, A Patriotic song by Irving Berlin
• Greater Buenos Aires
• K.F.C. Germinal Beerschot, a Belgian Football club
• "G.B.A.", a song on the Solace album from Xavier Rudd
• Glucocerebrosidase, a human gene responsible for Gaucher's disease.

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