Look up ga in Wiktionary, the free dictionary.
GA or Ga may refer to:
- the Ga language, the language spoken by the Ga people
- The Ga people, an ethnic group of Ghana
- Gabon (ISO 3166-1 alpha-2 country code)
- Gallium (chemical symbol)
- Giga-annum, a time period of one billion (109) years
- Garuda Indonesia (IATA code)
- General assembly
- General Aviation
- Genetic algorithm
- Georgia (U.S. state)
- Germantown Academy, the oldest nonsectarian day school in the United States
- Irish language, the ISO 639 alpha-2 code, from Irish Gaeilge
- Tabun ("GA"), a nerve agent
- Girls Aloud, a British girl group, winners of Popstars: The Rivals.
- Galaxy Angel
- General authority (Mormonism)