IA, Ia, or ia may refer to:

Arts and entertainment

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Businesses and organizations

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Government, law, and military

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Language

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People

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Places

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  • Iowa (IA), U.S. state, postal abbreviation
  • Indiana (Ia), U.S. state, older traditional abbreviation
  • Ia or Oia, Greece, on Santorini
  • Iá River, a river in Brazil

Science and technology

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Archaeology

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Biology and medicine

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Computing and electronics

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Other uses in science and technology

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Other uses

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See also

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