AQ, Aq, aQ, or aq may refer to:

Arts, entertainment and media A. Q. Shipley (Allan Quay Shipley, born 1986), known as AQ, American former football center and coach A-Q (born 1986), Nigerian rapper AQ Interactive, a Japanese video game developer AdventureQuest, a 2002 Web-based game Australian Quarterly, a journal for political science Ah Q or A Q, a character in 1921 novella The True Story of Ah Q Al-Qatala, a fictional group in the Call of Duty: Modern Warfare video game series

Businesses and organizations 9 Air, China (IATA:AQ) Acquity Group, US (NYSE:AQ) Alliance Quebec, Canada Aloha Airlines, a defunct US airline (IATA:AQ) Al-Qaeda, an Islamist militant group Al-Quds Force, a Iran special forces Automatic Qualifying conference, in North American college sports

Chemistry 8-Aminoquinoline (AQ), a heterocyclic bidentate ligand Anthraquinone (AQ), an aromatic organic compound Aqueous solution (aq), dissolved in water

Computing and telephony .aq, the Internet domain for Antarctica Adaptive quantization, a quantization process that provides efficient compression Oracle Advanced Queuing, a message provider used in the software products of the Oracle Corporation

Places Ak, Buin Zahra, also spelled Aq, a village in Iran Antarctica (ISO 3166:AQ) Academic Quadrangle, at Simon Fraser University, Burnaby, Canada American Samoa (DIA 65-18 / FIPS PUB 10-4:AQ) Antigua and Barbuda, LOC MARC code L'Aquila, a province of Italy

Psychology Attribution Questionnaire, a tool to assess mental illness stigma Adversity quotient, the ability to overcome adversities Autism-spectrum quotient, an adult test for autism spectrum disorder

Unit of measure Aq, or inch of water, a unit of pressure

See also AQA (disambiguation) Aqua (disambiguation) Ei-Q (1911–1960), photographer QA (disambiguation)