GA, Ga, or ga may refer to:
Organisations
Businesses
Other organizations
Linguistics
Languages and dialects
Characters
Places
Africa
Other places
Science and technology
Biology and medicine
Computing
Other uses in science and technology
- Gallium (symbol Ga), a chemical element
- General aviation, the category of civil aviation encompassing all non-scheduled aircraft flights
- Geometric algebra, a Clifford algebra used in a geometric context
- Gigaampere (GA), an SI unit of electric current equal to 1,000,000,000 (one billion) amps
- Gigaannum (Ga), a unit of time equal to 1,000,000,000 (one billion) years.
- Globular Amphora culture, an archaeological culture in Europe
- Go Ahead, in a telecommunications device for the deaf
Sport
- Goal attack, a position in netball
- Goals against, a statistic in ice hockey and other sports
- Games ahead, a less common version of the games behind statistic in baseball
Other uses
- GA Geijutsuka Art Design Class, an ongoing 2004 manga series by Satoko Kiyuzuki
- Gandhara or Ga, a basic note of the scale in Indian music, or Svara
- Ga people, an ethnic group of Ghana
- General of the Army, a military rank
- Global affairs, abbreviated GA, alternative term for International relations, the study of politics, economics and law on a global level
- Graduate assistant, a role in academia and in U.S. college sports