| Acronym | Definition |
|---|
| CAC | Citizens' Advisory Committee |
| CAC | Common Access Card (smart card technology used in DoD) |
| CAC | Call Admission Control |
| CAC | Codex Alimentarius Commission |
| CAC | Central Arizona College |
| CAC | Child Advocacy Center |
| CAC | Coronary Artery Calcium |
| CAC | Coaching Association of Canada |
| CAC | Capital Athletic Conference |
| CAC | Connection Admission Control (Asynchronous Transfer Mode) |
| CAC | Combined Arms Center (Ft Leavenworth, Kansas) |
| CAC | Citizens Advisory Council |
| CAC | Commissaire Aux Comptes (French, financial) |
| CAC | Central American and Caribbean |
| CAC | Command & Control |
| CAC | Creative Arts Center (West Virginia University) |
| CAC | Community Action Council |
| CAC | Citizens Action Coalition |
| CAC | Crimes Against Children |
| CAC | California Association of Criminalists |
| CAC | Consumers Association of Canada |
| CAC | Carrier Advisory Committee |
| Cac | Clostridium Acetobutylicum |
| CAC | Computing Accreditation Commission (ABET) |
| CAC | Chemometrics in Analytical Chemistry (conference) |
| CAC | Consulting and Audit Canada |
| CAC | Carrier Access Code |
| CAC | Community Activity Center |
| CAC | Canadian Airports Council |
| CAC | Consumer Affairs Commission (Jamaica) |
| CAC | Clean Air Campaign (Atlanta, GA) |
| CAC | Center for Advanced Computing (est. 2001; College of Engineering; University of Michigan; Ann Arbor, MI) |
| CAC | Cement Association of Canada |
| CAC | California Avocado Commission |
| CAC | Corporate Affairs Commission (Nigeria) |
| CAC | Cauliflower Alley Club |
| CAC | Cotation Assistée En Continu (French: Continuous-Time Computer-Assisted Quotation System) |
| CAC | Canadian Association for Conservation |
| CAC | Calling All Cars (Playstation 3 game) |
| CAC | Canadian Architecture Collection (Montreal, Quebec, Canada) |
| CAC | Communication Architecture for Clusters |
| CAC | Constitutional Accountability Center (Washington, DC) |
| CAC | Cairo American College (Egypt) |
| CAC | Context-Aware Computing |
| CAC | California Administrative Code |
| CAC | Cadet Advisory Council |
| CAC | Climate Analysis Center |
| CAC | Certified Addictions Counselor |
| CAC | Central Air Conditioner (real estate) |
| CAC | Chicago Artists' Coalition |
| CAC | Create A Card (online gaming) |
| CAC | Canadian Advisory Committee |
| CAC | Ceiling Attenuation Class |
| CAC | Carbon Arc Cutting |
| CAC | Community Activities Center |
| CAC | Clinical Advisory Committee |
| CAC | Clean Air Council |
| CAC | Comprehensive Abortion Care (obstetrics) |
| CAC | Channel Access Code |
| CAC | Centre d'Action Culturelle (French) |
| CAC | Community Affairs Committee |
| CAC | Chinese Alliance Church |
| CAC | Christ Apostolic Church |
| CAC | Civil Applications Committee |
| CAC | Collective Action Clause |
| CAC | Coal Association of Canada |
| CAC | Commission on Accreditation for Corrections |
| CAC | Continuity Army Council (IRA) |
| CAC | Crisis Action Center |
| CAC | Carrier Access Corporation (Boulder, CO, USA) |
| CAC | Central Air Command (Pakistan Air Force) |
| CAC | Campaign Against Censorship |
| CAC | Cultural Advisory Committee |
| CAC | Casualty Area Command |
| CAC | Caribbean Amerindian Centrelink (est. 1998) |
| CAC | Competition Appeal Court |
| CAC | Computer-Assisted Cartography |
| CAC | Cost At Completion |
| CAC | Central de Atendimento a Clientes |
| CAC | Conseil des Aéroports du Canada (Canadian Airports Council) |
| CAC | Crossroads of America Council (Boy Scout council comprising most of Indiana, USA) |
| CAC | Coheed & Cambria (band) |
| CAC | Center for Advanced Communications (Villanova University) |
| CAC | Computer Aided Crime |
| CAC | Cheese and Crackers |
| CAC | Coomera Anglican College (Gold Coast, Australia) |
| CAC | Cost Account Code |
| CAC | Chinese Annual Conference (of the Methodist Church in Singapore) |
| CAC | Compressed Aeronautical Chart |
| CAC | Customer Administration Center |
| CAC | Circuit Administration Center |
| CAC | Carrier Access Charge |
| CAC | Calling-Card Authorization Center |
| CAC | Communication Aid Centre (UK) |
| CAC | Connection Acceptance Control |
| CAC | Community Alliance Church |
| CAC | Certified Annuity Consultant |
| CAC | Canadian Aviation Corps (World War I) |
| CAC | Carbohydrate Awareness Council |
| CAC | Community Affairs Council |
| CAC | Continental Air Command |
| CAC | Coalition for America's Children |
| CAC | California Asparagus Commission |
| CAC | Charged Air Cooler (turbochargers) |
| CAC | Cooper Aerobics Center |
| CAC | Commander's Access Channel |
| CAC | Computer-Aided Construction |
| CAC | California Acupuncture College |
| CAC | Contract Awards Committee |
| CAC | Chengdu Aircraft Company (China) |
| CAC | Child Activity Center |
| CAC | California Apple Commission |
| CAC | Contract Audit Coordinator (DCAA) |
| CAC | Community Amenity Contribution (Canada) |
| CAC | Command Aviation Company |
| CAC | Combined Arms Center/Command |
| CAC | Conformity Assessment Certificate |
| CAC | current actions center (US DoD) |
| CAC | Credit Association of Canada |
| CAC | Capital Allocation Committee |
| CAC | Cardiac Accelerator Center |
| CAC | Combat Air Command |
| CAC | Compound Access Control |
| CAC | CableAmerica Corporation |
| CAC | Certificat d'Aptitute au Championnat (European dog shows) |
| CAC | Caribbean Air Command |
| CAC | Contractor's Approach to CALS |
| CAC | Casualty Area Commander |
| CAC | Cumulative Average Cost |
| CAC | Catchment Area Council |
| CAC | Compressor After Cooler |
| CAC | Cognitive-Affective-Conative |
| CAC | Catawba Animal Clinic (Rock Hill, South Carolina) |
| CAC | Complaints Advisory Committee |
| CAC | Campus Activities Committee (University of Minnesota) |
| CAC | Civil Affairs Coordinator |
| CAC | Contact Agility Club |
| CAC | Cardioacceleratory Center |
| CAC | Career Assistance Counseling |
| CAC | Connection Asset Customer |
| CAC | Combat Analysis Capability |
| CAC | Circuit Access Code |
| CAC | Corps Aviation Company |
| CAC | Crisis Action Cell |
| CAC | Control Analysis Center |
| CAC | Counselors Advisory Committee (B'ham Al Crisis Center) |
| CAC | Combat Assessment Capability |
| CAC | Contact Approach Control |
| CAC | Community Agriculture Centre |
| CAC | Centre Algérien de la Cinématographie (Algeria) |
| CAC | Catholic Anglican Church |
| CAC | Conditional Acceptance Certificate |
| CAC | Closed Air Circuit |
| CAC | Clear Acquisition Code (GPS) |
| CAC | Carrier Air Patrol |
| CAC | Calculated Age at Commencement (UK criminal system; mainly prison & probation services) |
| CAC | Custom Arms Company, Inc. |
| CAC | Computer Asset Controller |
| CAC | CECOM (Army Communications and Electronics Command) Acquisition Center (US Army) |
| CAC | Concord Automation and Controls |
| CAC | Certificat d'Aptitute Au Championat (FCI dog show reserve champion) |
| CAC | Change to Approach Control |
| CAC | Central Alarm Cabinet |
| CAC | Cyclists Advisory Committee (Alberta, Canada) |
| CAC | Cumulative Average Curve |
| CAC | Common Avionics Computer |
| CAC | Cronacher Ausschuss Compagnie (Kronach, Germany historical reenactment group) |
| CAC | Credentialed Addictions Counselor |
| CAC | Common And COTS |
| CAC | Complex Advisory Council |
| CAC | Cow Appreciation Campaign |
| CAC | Commandos d'Action Cubains (French) |
| CAC | Conservatief Accoord |
| CAC | Connection Assurance Check |
| CAC | Crew Available Cycle |
| CAC | Computer-Aided Cost/Classification |
| CAC | Collection Accounting Classification |
| CAC | Collection Advisory Center |
| CAC | Civilian Advisory Conference |
| CAC | Calling-card Authorization Computer (Sprint) |
| CAC | Categorization & Custody |
| CAC | Change Area Coordinator (Sprint) |
| CAC | Console Alarm Card |
| CAC | Coastal Assistant Controller |
| CAC | Commuting Area Candidate |
| CAC | Compandored Analog Carrier |
| CAC | Criteria Air Containment |
| CAC | Central Accessory Compartment |
| CAC | Clear All Corridors (hospital) |
| CAC | Connection Address Control |