| Acronym | Definition |
|---|
| ATA➣Advanced Technology Attachment (IDE Interface for IBM-PC/AT & compatible computers) |
| ATA➣Addictions Training Academy (est. 2009; UK) |
| ATA➣Air Transport Association |
| ATA➣American Trucking Associations (Alexandria, Virginia) |
| ATA➣Alberta Teachers' Association |
| ATA➣American Translators Association |
| ATA➣Analog Telephone Adapter |
| ATA➣Actual Time of Arrival |
| ATA➣American Taekwondo Association |
| ATA➣Africa Travel Association |
| ATA➣American Thyroid Association |
| ATA➣Alternative Technology Association (Australia) |
| ATA➣Antarctica (ISO Country code) |
| ATA➣Aid to Artisans (Newtown, MA) |
| ATA➣Agreement to Agree (contingent contract) |
| ATA➣Alliance for Technology Access |
| ATA➣Archery Trade Association (Salt Lake City, UT) |
| ATA➣Allen Telescope Array |
| ATA➣American Telemedicine Association |
| ATA➣Approval to Award (California) |
| ATA➣American Tinnitus Association |
| ATA➣Amateur Trapshooting Association |
| ATA➣Air-To-Air |
| ATA➣Apples to Apples |
| ATA➣Admission Temporaire (French: Temporary Admission) |
| ATA➣ARCNET Trade Association |
| ATA➣American Teleservices Association |
| ATA➣Advanced Technology Attachment |
| ATA➣Application Targeted Accelerator |
| ATA➣Any to Any |
| ATA➣anti Theft Alarm |
| ATA➣Asynchronous Terminal Adapter |
| ATA➣Automotive Technician Accreditation |
| ATA➣Analog Trunk Adapter |
| ATA➣Analog Terminal Adapter |
| ATA➣Artists' Television Access (San Francisco, CA) |
| ATA➣Animal Transportation Association (Warrenton, VA) |
| ATA➣Anti-Terrorism Act |
| ATA➣Atmospheres Absolute |
| ATA➣American Tarot Association |
| ATA➣Allegheny Trail Alliance |
| ATA➣Accredited Tax Advisor (accreditation from College for Financial Planning and the Accreditation Council on Accountancy) |
| ATA➣Albanian Telegraphic Agency (Albanian News Agency) |
| ATA➣Application to Application |
| ATA➣American Tennis Association |
| ATA➣Aerospace Testing Alliance (Arnold AFB, TN) |
| ATA➣American Topical Association |
| ATA➣Association of Talent Agents |
| ATA➣Associazione Tecnica dell'Automobile (Italy) |
| ATA➣Antiterrorism Assistance (program) |
| ATA➣American Trans Air, Inc. |
| ATA➣Administrative Tribunals Act (Canada) |
| ATA➣Aurintricarboxylic Acid |
| ATA➣Auckland Transition Agency (New Zealand) |
| ATA➣Atmosphere Absolute |
| ATA➣Automatic Temperature Control |
| ATA➣Air Travelers Association |
| ATA➣American Trakehner Association |
| ATA➣Afghan Transitional Authority |
| ATA➣Automatic Tracking Aid (radar technology) |
| ATA➣Applied Technology Associates |
| ATA➣Advanced Tactical Aircraft |
| ATA➣Alabama Turfgrass Association (est. 1961) |
| ATA➣American Tilapia Association |
| ATA➣American Telugu Association |
| ATA➣Average Total Assets |
| ATA➣Asia Theological Association |
| ATA➣Aboriginal Tourism Association (British Columbia, Canada) |
| ATA➣American Telecommuting Association |
| ATA➣Alfabetico per Autore (Italian: Alphabetical by Author) |
| ATA➣Agricultural Tenancies Act (UK) |
| ATA➣Anterior Tibial Artery |
| ATA➣Airlift Tanker Association (USAF) |
| ATA➣Air Transportation Association of America |
| ATA➣Airport Traffic Area |
| ATA➣Air Transport Authority |
| ATA➣American Tapestry Alliance |
| ATA➣American Telemarketing Association |
| ATA➣Auxiliary Ocean Tug |
| ATA➣Association of Teaching Artists (New York) |
| ATA➣Architecture Tradeoff Analysis |
| ATA➣American Tailgaters Association |
| ATA➣All Takashimaya Agency (Japan) |
| ATA➣Access Tower (Vandenberg AFB, CA) |
| ATA➣Army Technical Architecture |
| ATA➣American Theatre Association |
| ATA➣Alaska Telephone Association |
| ATA➣Autonomous Target Acquisition |
| ATA➣Associate of Technical Arts Degree (degree program) |
| ATA➣Außergerichtlicher Tatausgleich (German: Act Reconciliation out of Court; Austria, Europe) |
| ATA➣Alien Tort Act (also seen as ATCA, Alien Tort Claims Act) |
| ATA➣Afghan Taekwon-Do Association (martial arts) |
| ATA➣American Transit Association |
| ATA➣Advanced Technology Academy |
| ATA➣Advanced Technologies Academy (Las Vegas, NV) |
| ATA➣Applied Technologies Associates (Paso Robles, CA) |
| ATA➣Aspirin Tolerant Asthma |
| ATA➣Advanced Technology Aircraft |
| ATA➣American Tunaboat Association |
| ATA➣Advanced Test Accelerator |
| ATA➣American Target Advertising, Inc. |
| ATA➣Annales de Toxicologie Analytique (French: Journal of Analytical Toxicology) |
| ATA➣Automatic Trouble Analysis |
| ATA➣Alliance Transport et Accompagnement (French: Alliance Transportation and Accompaniment) |
| ATA➣Amino Triazole (organic compound) |
| ATA➣Aviation Training Association |
| ATA➣Alliance of Taiwan Aborigines (Taiwan) |
| ATA➣Art Teachers Association |
| ATA➣ANSI AT Attachment (PCMCIA cards) |
| ATA➣Alcatel TITN Answare |
| ATA➣Automotive Training Academy (American Financial & Automotive Services, Inc.) |
| ATA➣Additional Training Assemblies |
| ATA➣Automated Test and Analysis (various locations) |
| ATA➣Anti Tank Artillery |
| ATA➣Alberta Trucking Association |
| ATA➣Adventure Training Award |
| ATA➣Arkansas Telecommunications Association |
| ATA➣Antenna Train Angle (fighter aircraft targeting) |
| ATA➣Alliance Tours Airsoft (French airsoft club) |
| ATA➣Association of independent Travel Agents |
| ATA➣Audit Trail Analysis |
| ATA➣American Tarentaise Association |
| ATA➣Air Traffic Authority |
| ATA➣Alternative Technologies and Approaches |
| ATA➣Australian Telecommunications Authority |
| ATA➣Associate Technical Aide |
| ATA➣Automatic Threshold Adjustment |
| ATA➣ATbus-Attachment (mobile version of IDE) |
| ATA➣Analog Terminal and Access |
| ATA➣Avionics Test Article |
| ATA➣Air Tasking Authority |
| ATA➣Accumulated Time Analysis |
| ATA➣Authority to Advertise (US Army Corps of Engineers) |
| ATA➣African Technical Association (South Africa) |
| ATA➣Ateliers de Tôlerie de l'Atlantique (French autobody shop) |
| ATA➣American Towing Alliance, Inc. (Upland, CA) |
| ATA➣Automatic Terrain Avoidance |
| ATA➣American TeledCommunications Alliance |
| ATA➣Automated Testing Analyzer |
| ATA➣Area Taxpayer Advocate (US IRS) |
| ATA➣Automatic Testing Assertion |
| ATA➣Automated Target Acquisition |
| ATA➣Auto Técnica Alemana (Spanish, auto workshop) |
| ATA➣Audit Trail Addendum |
| ATA➣Auxiliary Timer Assembly |
| ATA➣Activity Therapists Association (Chicago, IL) |
| ATA➣Accredited Teacher Accomplishment (New South Wales Institute of Teachers; New South Wales, Australia) |
| ATA➣Appropriation Transfer Account |
| ATA➣Automatic Track Acquisition |
| ATA➣Affordable Trooper Armor (Star Wars costume) |