TAS

TAS can refer to:

* Trent Accreditation Scheme, an internationally-active hospital quality and safety surveying group.
* Taipei American School, an international school in Taipei, Taiwan.
* Target Account Selling, a process for managing complex sales
* "Target Acquisition System", a 2-dimension air-search radar used by the United States Navy.
* Tasslehoff Burrfoot, a character in many of the Dragonlance novels.
* Tasmania, a state of Australia.
* Test-and-set, a special CPU instruction.
*The American Statistician, a magazine.
* The Armidale School, New South Wales, Australia
* The Associated Schools, an affiliated group of schools located in South East Queensland.
* The Artists' Studio, a community theatre in Indiana.
* The TAS Partnership, a UK transport consultancy.
* "Thought As a System", a book and theory by David Bohm.
* Total Analysis System
* Tool-assisted speedrun, a video game speedrun in which tools are used.
* Towed array sonar
* True airspeed, the actual airspeed of an airplane.
* "TAS Software", a UK and Ireland subsidiary of The Sage Group.
* Name of a Family in Punjab, India
* River Tas in Norfolk, England, from which the village of Tasburgh is named.
* ""
* Trinity Anglican School, denotes White Rock & Marlin Coast campus of Trinity Anglican School in Cairns, Qld. Australia
* The Atlas Society
* TAS classification, the chemical classification and nomenclature of volcanic rocks using the Total Alkali versus Silica (TAS) diagram.
* Terminal Automation System, System that controls and assists tanker and barge petroleum product loading and unloading.
* Turbine Air Systems, a provider of modular energy and other solutions for the power generation and HVAC industries.