| Acronym | Definition |
|---|
| ACTC | Apple Certified Technical Coordinator |
| ACTC | Almaden Cycle Touring Club |
| ACTC | Associated Colleges of the Twin Cities |
| ACTC | All Ceylon Tamil Congress (Sri Lanka) |
| ACTC | Association Canadienne de Télévision par Câble |
| ACTC | Association for Core Texts and Courses |
| ACTC | Advanced Computing Technology Center (IBM Research) |
| ACTC | Asociación Corredores Turismo Carretera (tourism racers association, Argentina) |
| ACTC | American College of Tax Counsel |
| ACTC | Agency Chiefs Tribal Council |
| ACTC | Advance Child Tax Credit (US IRS) |
| ACTC | Arizona Community Tree Council |
| ACTC | American Conference on Theoretical Chemistry |
| ACTC | Association of Classic Trials Clubs |
| ACTC | Assistance Center of Towson Churches |
| ACTC | Australian Capital Tourism Corporation |
| ACTC | Alabama Center for Traditional Culture |
| ACTC | Ashland Community & Technical College |
| ACTC | Andhra Christian Theological College |
| ACTC | Allegheny County Transit Council |
| ACTC | American Cesky Terrier Club |
| ACTC | Atlanta Chemical Technologies Corporation |
| ACTC | ASEAN Centre for Combating Transnational Crime |
| ACTC | Air Cargo Tracking Consultant (newsletter) |
| ACTC | Alaska Computer Training Center |
| ACTC | AIDS Clinical Trial Center (Vanderbilt University) |
| ACTC | AIWC Computer Training Centre |
| ACTC | Agency for Cultural and Technical Cooperation (Niger) |
| ACTC | Amana Colonies Telephone Company |
| ACTC | Aventis Combinatorial Technologies Center |
| ACTC | Advisory Committee on Technical Committees (OASIS) |
| ACTC | ActivCard Authorized Training Center (ActivCard, Inc.) |
| ACTC | Advisory Committee on Technology and the Courts (Ohio Supreme Court, Columbus, OH, USA) |
| ACTC | Arizona Competitive Telecommunications Coalition |
| ACTC | Advanced Control Technology Club |
| ACTC | Advanced Communications Transfer Convention (ActiveInfo Solutions Internet Protocol) |
| ACTC | American College Testing Center |
| ACTC | Arizona Classic Thunderbird Club |
| ACTC | Advanced Cooking Technology Center |
| ACTC | Armenian Church Trauma Centre |
| ACTC | Air Cushion Technology Center (RushStar) |
| ACTC | Applied Computer Technology Corp. |
| ACTC | Alberta Carpenters Training Centre (Canada) |
| ACTC | Astra Caravan Team Clausthal |
| ACTC | Alliance of Canadian Translation Companies |
| ACTC | Allegheny Christian Training Center |
| ACTC | Advanced Command Training Council |
| ACTC | Assistive Computer Technology Center |
| ACTC | Australian Committee of TAFE Curriculum |
| ACTC | Anson County Technology Coalition |
| ACTC | AIDS Consortia of the Treasure Coast |
| ACTC | Air Combat Training Curriculum |
| ACTC | Adult Competitive Tennis Council |
| ACTC | Associação da Criança Transplantadado Coração |
| ACTC | Adams County for the Ten Commmandments |
| ACTC | Actividades Científicas y Técnicas Correlacionadas |
| ACTC | Asynchronous Transfer of Control Threading (Velare Technologies Inc.) |
| ACTC | Atlantic City Transportation Center (New Jersey) |
| ACTC | Average Case Time Complexity |