| A&TA | Assembly and Test Area 
| Others |
| ATA | A Torrid Affair
| Others |
| ATA | Abort The Abortion
| Others |
| ATA | Academia Titi Aur
| Others |
| ATA | Academy for Technology and Academics
| Others |
| ATA | Academy of Theatre Arts
| Others |
| ATA | Accredited Tax Advisor
| Others |
| ATA | Accredited Technical Associate
| Others |
| ATA | Accumulated Time Analysis
| Others |
| ATA | Actual Time of Arrival
| Others |
| ATA | Adirondack Triumph Association
| Others |
| ATA | Admission Temporaire-Temporary Admission
| Others |
| ATA | Admission Temporarie Admission
| Others |
| ATA | Advance Threat Analytics
| Others |
| ATA | Advanced Technology Academy
| Others |
| ATA | Advanced Technology Architecture
| Others |
| ATA | Advanced Technology Attachement
| Others |
| ATA | Advanced Technology Attachment
| Others |
| ATA | Advanced Technololgy Attachment
| Others |
| ATA | Advanced Threat Analytics
| Others |
| ATA | Advanced Tow Assist
| Others |
| ATA | Aerospace Testing Alliance
| Others |
| ATA | Africa Tourism Association
| Others |
| ATA | Africa Travel Association
| Others |
| ATA | Agence Transaction Automobile
| Others |
| ATA | Agrarische Termijnmarkt Amsterdam
| Others |
| ATA | Air Transport Association
| Others |
| ATA | Air Transport Association of America
| Others |
| ATA | Air Transportation Association
| Others |
| ATA | Air Travel Adjustment
| Others |
| ATA | Airboard Team Attack
| Others |
| ATA | Airlift Tanker Association
| Others |
| ATA | Airline Transport Association
| Others |
| ATA | Airport Taxi Association
| Others |
| ATA | Ait To Air
| Others |
| ATA | Alabama Trucking Association
| Others |
| ATA | Alaska Trucking Association
| Others |
| ATA | Albanian Telegraphic Agency
| Others |
| ATA | Alberta Teachers' Association
| Others |
| ATA | Alcoholic Teacher Assistant
| Others |
| ATA | Alcoholic Teaching Assistant
| Others |
| ATA | Alexander Thompson Arnold
| Others |
| ATA | All Terrain Ants
| Others |
| ATA | Allen Telescope Array
| Others |
| ATA | Alliance for Technology Access
| Others |
| ATA | Alpha Tau Alpha
| Others |
| ATA | Also Translated As
| Others |
| ATA | Alternative Technology Association
| Others |
| ATA | Alternatives To Aggression
| Others |
| ATA | Always Tardy Airlines
| Others |
| ATA | Amateur Trapshooting Association
| Others |
| ATA | Amatuer Trap Association
| Others |
| ATA | American Taekwondo Association
| Others |
| ATA | American Tarot Association
| Others |
| ATA | American Taxation Association
| Others |
| ATA | American Telemedicine Association
| Others |
| ATA | American Tennis Association
| Others |
| ATA | American Therapy Association
| Others |
| ATA | American Thyroid Association
| Others |
| ATA | American Tinnitus
| Others |
| ATA | American Tinnitus Association
| Others |
| ATA | American Topical Association
| Others |
| ATA | American Towing Alliance
| Others |
| ATA | American Trakehner Association
| Others |
| ATA | American Trans Air
| Others |
| ATA | American Transcription Association
| Others |
| ATA | American Translators Association
| Others |
| ATA | American Trucking Associations
| Others |
| ATA | American Tunaboat Association
| Others |
| ATA | Analog Telephone Adapter
| Others |
| ATA | Analog Telephone Adaptor
| Others |
| ATA | Analog Telephone Adaptors
| Others |
| ATA | Analog Trunk Adapter
| Others |
| ATA | Analogue Terminal Adapter
| Others |
| ATA | Analysis Tools For Aptamer
| Others |
| ATA | Animal Transport Association
| Others |
| ATA | Animal Transportation Association
| Others |
| ATA | Anterior Tibial Artery
| Others |
| ATA | Anti Terrorism Act
| Legal |
| ATA | Anti Theft Alarm
| Others |
| ATA | Anti-Tank Assault
| Others |
| ATA | Any Time Anywhere
| Others |
| ATA | Application Targeted Accelerator
| Others |
| ATA | Applied Technology Associates
| Others |
| ATA | Apprenticeship Training Agency
| Others |
| ATA | Arab Taxi Association
| Others |
| ATA | Archery Trade Association
| Others |
| ATA | Archery Trade Awesome
| Others |
| ATA | Area Transportation Authority
| Others |
| ATA | Argentine Toxicologial Association
| Others |
| ATA | Arizona Tennis Association
| Others |
| ATA | Army Technical Architecture
| Others |
| ATA | Army Training Agenda
| Others |
| ATA | Arrival Times Approximate
| Others |
| ATA | Articulated Table Top
| Others |
| ATA | Artists' Television Access
| Others |
| ATA | Ashes To Ashes
| Others |
| ATA | Asia Theological Association
| Others |
| ATA | Asociacion de Transportistas Autonomos
| Others |
| ATA | Assembly Terminal Assignment
| Others |
| ATA | Assessment Treatment Alternatives
| Others |
| ATA | Assistive Technologies of Alaska
| Others |
| ATA | Association of Automotive Engineering
| Others |
| ATA | Association of Talent Agents
| Others |
| ATA | Association Of Translation Agencies
| Others |
| ATA | Associazione Tecnica dell'Automobile
| Others |
| ATA | Asynchronous Terminal Adapter
| Others |
| ATA | AT Attached an
| Others |
| ATA | AT Attachment ATAPI
| Others |
| ATA | Atlantic Treaty Association
| Others |
| ATA | Attachment To An
| Others |
| ATA | Attention Assist
| Others |
| ATA | Audi Talents Awards
| Others |
| ATA | Audi Tracking Assistant
| Others |
| ATA | Australian Trucking Association
| Others |
| ATA | Authority To Advertise
| Others |
| ATA | Auto Trade Associates
| Others |
| ATA | Auto Truck Auction
| Others |
| ATA | Autoliv Thailand Airbag
| Others |
| ATA | Automatic Tracking Aid
| Others |
| ATA | Automatic Trouble Analysis
| Others |
| ATA | Automotive Technical Association
| Others |
| ATA | Automotive Technician Accreditation
| Others |
| ATA | Automotive Training Academy
| Others |
| ATA | Automotive Training Accreditation
| Others |
| ATA | Automotive Training Authority
| Others |
| ATA | Auxiliary Ocean Tug (Auxiliary, Tug, Auxiliary)
| Others |
| ATA | Axle To Axle
| Others |