| Acronym | Definition |
|---|
| ATC➣Air Traffic Control |
| ATC➣Average Total Cost |
| ATC➣Artist Trading Card |
| ATC➣Air Training Corps (United Kingdom and Australia) |
| ATC➣Certified Athletic Trainer |
| ATC➣Against the Current (band) |
| ATC➣Access to Care (various organizations) |
| ATC➣Automatic Tool Changer |
| ATC➣Automatic Temperature Compensation |
| ATC➣Applied Technology Council |
| ATC➣Anatomical Therapeutic Chemical (drug classification system) |
| ATC➣Appalachian Trail Conservancy (formerly Appalachian Trail Conference) |
| ATC➣Authority to Carry (various locations) |
| ATC➣Above the Clouds |
| ATC➣After the Crisis |
| ATC➣Agreement on Textiles and Clothing |
| ATC➣Aluminum Trailer Company (Nappanee, IN) |
| ATC➣Automatic Temperature Control |
| ATC➣Across the Curriculum (academics) |
| ATC➣All Things Considered (National Public Radio show) |
| ATC➣At the Center (Hartford, Maine retreat center) |
| ATC➣Advanced Technology Center |
| ATC➣Approval to Construct (various locations) |
| ATC➣A Touch of Class (band) |
| ATC➣Automatic Transmission Control |
| ATC➣Around The Clock |
| ATC➣Automatic Train Control (rail signaling systems) |
| ATC➣American Theater Company (various locations) |
| ATC➣Altamaha Technical College (Jessup, GA) |
| ATC➣Australian Turf Club (Sydney, Australia) |
| ATC➣Autodesk Training Center (various locations) |
| ATC➣Advance To Contact |
| ATC➣American Transplant Congress |
| ATC➣Autonomic and Trusted Computing (conference) |
| ATC➣Assessment of Technical Competence (various organizations) |
| ATC➣Acoustic Transducer Company (loudspeakers; various locations) |
| ATC➣Australian Technical College |
| ATC➣Active Thermal Control |
| ATC➣Athletic Trainer, Certified |
| ATC➣Automated Test Case (product development) |
| ATC➣Advancing the Choice (conference) |
| ATC➣Authorization to Close (finance) |
| ATC➣Aberdeen Test Center |
| ATC➣Air Training Command (USAF; now Air Education and Training Command, AETC) |
| ATC➣Adoption Tax Credit |
| ATC➣Address Translation Cache |
| ATC➣American Tobacco Company (est. 1890) |
| ATC➣Autodesk Training Center |
| ATC➣Auto Tuning Centrum |
| ATC➣Active Torque Control |
| ATC➣Authorized Training Center |
| ATC➣Active Traction Control |
| ATC➣Autonomic and Trusted Computing |
| ATC➣Adaptive Transform Coding |
| ATC➣Automatic Torque Coupling |
| ATC➣Auto Temperature Control |
| ATC➣Atm Transfer Capability |
| ATC➣Adaptive Transmission Control |
| ATC➣Address Translation Controller |
| ATC➣Abstract Test Case |
| ATC➣Air Transport Command |
| ATC➣Ancillary Terrestrial Component (FCC) |
| ATC➣Alberdingk Thijm College (Hilversum, Netherlands) |
| ATC➣American Technology Corporation |
| ATC➣All Things Cedar (furniture) |
| ATC➣Advanced Technical Ceramics (Corporation) |
| ATC➣Appalachian Trail Conference (now Appalachian Trail Conservancy) |
| ATC➣Advanced Technology Consulting, Inc. (Mason, OH) |
| ATC➣Automatic Traction Control |
| ATC➣American Tower Corporation |
| ATC➣Apprenticeship Training Committee (various organizations) |
| ATC➣Academic Technology Center (Worcester, MA) |
| ATC➣American Turkish Council |
| ATC➣Access to Carrier (Nortel) |
| ATC➣Australian Transport Council |
| ATC➣Athens Technical College (Georgia) |
| ATC➣Australian Tourist Commission (now Tourism Australia) |
| ATC➣Advancement to Candidacy (various schools) |
| ATC➣Athletic Training Club (various locations) |
| ATC➣Astronomy Technology Centre (Edinburgh, Scotland) |
| ATC➣Alexandria Technical College (Alexandria, MN) |
| ATC➣Applied Technology Center |
| ATC➣Air Tanzania (ICAO code) |
| ATC➣Aviation Training Center |
| ATC➣Advanced Technical Center |
| ATC➣Art, Technology and Culture Colloquium (University of California, Berkeley) |
| ATC➣Arthurs Town, Bahamas (Airport Code) |
| ATC➣Authorized Testing Center |
| ATC➣Asia & Pacific Trade Center (Japan) |
| ATC➣Ambulatory Treatment Center (various locations) |
| ATC➣Adolescent Treatment Center (various locations) |
| ATC➣4-Amino-1,2,4-Triazole (nitrification inhibitor) |
| ATC➣American Transmission Company LLC (Waukesha, WI) |
| ATC➣Authority to Construct |
| ATC➣Alcoa Technical Center (Pennsylvania) |
| ATC➣Atomistic-to-Continuum (mathematics) |
| ATC➣Anaplastic Thyroid Carcinoma |
| ATC➣Ano-Tech Computers (Norway) |
| ATC➣Advanced Transfer Cache |
| ATC➣Asociación de Trabajadores del Campo (Farm Workers Association, Nicaragua) |
| ATC➣Alcohol and Tobacco Control (Louisiana) |
| ATC➣Available Transmission Capacity |
| ATC➣Advanced Training Class (various organizations) |
| ATC➣Automotive Training Center (Exton, Pennsylvania) |
| ATC➣Army Training Center |
| ATC➣Afghan Technical Consultants (Kabul, Afghanistan) |
| ATC➣Atlantic Theater Company (New York, New York) |
| ATC➣Area Traffic Control (London, UK) |
| ATC➣Alcohol Treatment Center |
| ATC➣Austin Technology Council |
| ATC➣Armored Troop Carrier |
| ATC➣Any Two Cards (poker card game) |
| ATC➣Associated Theatrical Contractors (Springfield, MO) |
| ATC➣Argentina Televisora Color (public television network former name) |
| ATC➣Accredited Test Centre (various locations) |
| ATC➣Art Theory and Criticism (variou schools) |
| ATC➣Advanced Telecommunications Corporation |
| ATC➣Anywhere Travel Companion (touch screen) |
| ATC➣Angels That Care |
| ATC➣Anatomical Therapeutic Classification |
| ATC➣Area Teaching Committee (various locations) |
| ATC➣Agence du Tourisme de la Corse (French: Corsica Tourism Agency) |
| ATC➣Achilles Track Club |
| ATC➣All Terrain Crane |
| ATC➣American Textbook Council (est. 1988; New York) |
| ATC➣Azienda Trasporti Consorziali (Bologna, Italy) |
| ATC➣Arizona Technology Council |
| ATC➣AirTouch Communications |
| ATC➣Anti-Terrorist Court (Pakistan) |
| ATC➣Assurance Technology Corporation |
| ATC➣Adventure Training Camp |
| ATC➣All Terrain Cycle |
| ATC➣Authority to Connect |
| ATC➣Automatic Traffic Counter (UK) |
| ATC➣Attitude and Translation Control |
| ATC➣Alternative Technology Centre (Hebden Bridge, UK) |
| ATC➣Aromatics Thailand Public Company Limited |
| ATC➣Automated Toll Collection |
| ATC➣Ask the Chief (various organizations) |
| ATC➣Appalachian Technical College |
| ATC➣Air Threat Conference (US DoD) |
| ATC➣Australian Tax Cases (Australia) |
| ATC➣All Things Cherokee (resource) |
| ATC➣American Television & Communications |
| ATC➣Automatic Target Cueing |
| ATC➣Air Travel Card (airlines) |
| ATC➣Acronyme en Trois Lettres (French: Three Letter Acronym) |
| ATC➣air transportable clinic (USAF) |
| ATC➣Artesian Technology Corporation (Ossining, NY) |
| ATC➣Air Transportable Clinic |
| ATC➣Assurance Technology Center (NASA) |
| ATC➣Area Training Center |
| ATC➣All Translations Company (formerly The Manual Company) |
| ATC➣Ácido Tricloroacético (Portugese) |
| ATC➣Advanced Telecommunications Component |
| ATC➣Air Target Chart |
| ATC➣American Thermoplastic Company |
| ATC➣Chief Aviation Electronics Technician (Naval Rating) |
| ATC➣Application Transaction Counter |
| ATC➣Alpine Tourist Commission |
| ATC➣Automatic Threshold Control |
| ATC➣Absolute Time Command |
| ATC➣Avalos Transportation Company, Inc. (Orlando, FL) |
| ATC➣American Telecommunications Company, Inc. |
| ATC➣Adriatic Trade Centre (Italy) |
| ATC➣Alternative Technical Concept (US DOT) |
| ATC➣Aluminum Technology Centre (Canada) |
| ATC➣Advanced Technology Council |
| ATC➣Additives Technical Committee (Petroleum Additive Manufacturers in Europe) |
| ATC➣Affordability Through Commonality |
| ATC➣Access Tandem Code |
| ATC➣Ancillary Time Code |
| ATC➣Affordable Travel Club (Gig Harbor, WA) |
| ATC➣Adiabatic Toroidal Compressor |
| ATC➣Adaptive Transform Coder |
| ATC➣Automatic Target Classification |
| ATC➣Absolute Time Code (video and audio postproduction) |
| ATC➣Mini-Armored Troop Carrier |
| ATC➣AEGIS Training Center |
| ATC➣Automatic Transfer Case (General Motors) |
| ATC➣Active Transfer Case (Magna International Inc.) |
| ATC➣American Tournai Club (automobile club; Belgium) |
| ATC➣Alien Tuning Club (automobile club; France) |
| ATC➣Actual Time to Count (shipping) |
| ATC➣Association Tunisienne de Chirurgie |
| ATC➣Auto Test Center (Consumers Union) |
| ATC➣Applications Techniques et Commerciales (French: Technical and Commercial Applications) |
| ATC➣Acute Toxicity Class |
| ATC➣Automated Technical Control |
| ATC➣Authorization To Copy |
| ATC➣ALLBASE/Turbo Connect |
| ATC➣Ammunition Team Chief |
| ATC➣Associazione Ticinese dei Chimici (Association of Chemical Ticinese; now dissolved) |
| ATC➣Air Tactical Communications |
| ATC➣Analog Traffic Channel |
| ATC➣Alliance for Technology Commercialization, Inc. |
| ATC➣Anurag Tyagi Classes (India) |
| ATC➣Additional Trunk Capacity (ITU-T) |
| ATC➣Anti-Tank Cannon |
| ATC➣Allowance Type Code |
| ATC➣Association des Travailleurs Agricoles (Agricultural Workers' Association) |
| ATC➣Aquaculture Technology Centre (University of Stirling, UK) |
| ATC➣Assessment Training Centre |
| ATC➣Ahn Taekwondo Columbus (Columbus, OH) |
| ATC➣Aircraft Test Committee |
| ATC➣Active Trouble Code |
| ATC➣Australian Trade Community |
| ATC➣Aeration Tank Concentration (wastewater treatment) |
| ATC➣Advanced Thermoplastic Composite |
| ATC➣Aerospace Tool Corporation |
| ATC➣Assistant Test Controller |
| ATC➣Army Tactical/Transportation Command |
| ATC➣Aided Target Classification |
| ATC➣Audio Teleconferencing Center |
| ATC➣Agri and Co-operative Training and Consultancy Services |
| ATC➣Accounting Tuition Centre |
| ATC➣Airport Transfer Center (US Postal Service) |