Aak or AAK may refer to:
* Aak, a genre of Korean court music
*
Aak flower
''Calotropis gigantea'', the crown flower, is a species of ''Calotropis'' Indigenous (ecology), native to Cambodia, Vietnam, Bangladesh, Indonesia, Malaysia, Philippines,Thailand, Sri Lanka, India, China, Pakistan, and Nepal.
It is a large s ...
, madar or crown flower, common name of ''Calotropis gigantea''
* AAK Theory, a mathematical theory relating rational functions with singular values
* AarhusKarlshamn (operating as AAK), a Swedish producer of vegetable oils and fats
* Ajnad al-Kavkaz, a Chechen-led militia in the Syrian Civil War
*
* Armée de l'Air Khmère (Khmer Air Force, the air force of the Khmer Republic)
* IATA airport code for
Aranuka Airport
Aranuka Airport is an airport, located approximately one kilometre north of the centre of Buariki village on the island of Buariki, Aranuka, Kiribati.
The airport is served twice a week by Air Kiribati from Kuria Airport on Kuria. From there ...