AAT
# AAT

AAT or Aat may refer to:

## Aviation

* Asia Airfreight Terminal, Hong Kong International Airport
* Altay Airport, Xinjiang, China
* Location identifier for Alturas Municipal Airport, California, United States

## Biochemistry

* Alpha 1-antitrypsin, also α1-antitrypsin (A1AT), a glycoprotein
* Aspartate transaminase, or Aspartate Aminotransferase, an enzyme
* AAT, a codon for the amino acid Asparagine

## Places

* Achanalt railway station
* Ath, Belgium (Dutch: Aat)
* Australian Antarctic Territory
* AutoAlliance Thailand, a joint venture automobile manufacturing plant

## Science

* Anglo-Australian Telescope
* Animal-assisted therapy
* Aquatic Ape Theory, a theory in human evolution
* Ancient Astronauts; or Ancient Astronaut Theory

## Technology

* Apple Advanced Typography, a font rendering technology

## Other uses

* Aat (queen), an ancient Egyptian queen consort of the 12th dynasty
* Administrative Appeals Tribunal, in Australia
* And Another Thing (disambiguation)
* Art & Architecture Thesaurus, a controlled vocabulary used for describing items of art.
* Arvanitika, a variety of Albanian spoken in Greece
* Association of Accounting Technicians
* The Bible, An American Translation
* Armored Assault Tank, a Separatist tank in the prequel era of the Star Wars universe
