ACC
- 1-Aminocyclopropane-1-carboxylic acid
- ACC (complexity)
- ACC (programming language)
- ACC Limited
- ACC Liverpool
- ACC Micro
- ACCBank
- AFC Challenge Cup
- AMD 700 chipset series
- Aberdeenshire Cricket Club
- Accident Compensation Corporation
- Accreditation Committee of Cambodia
- Accredited Clinical Coder
- Acetyl-CoA carboxylase
- Achi language
- Active Cylinder Control
- Active clearance control
- Acton Central railway station
- Adaptive cruise control
- Adenoid cystic carcinoma
- Adirondack Community College
- Adrenocortical carcinoma
- Agenesis of the corpus callosum
- Air Combat Command
- Air Component Commander
- Allegany Community College
- Allied Clandestine Committee
- Allied Control Commission
- Allied Control Council
- Alpine Club of Canada
- Alvin Community College
- America's Cup Class
- American Campus Communities
- American Chemistry Council
- American College of Cardiology
- American Conservation Coalition
- American Country Countdown
- American Craft Council
- Americans for Common Cents
- Angel City Chorale
- Anglican Catholic Church
- Anglican Church of Canada
- Anglican Consultative Council
- Annenberg Center for Communication
- Another Course to College
- Antarctic Circumpolar Current
- Anterior cingulate cortex
- Anti Corruption Commission Bangladesh
- Anti-Capitalist Convergence
- Aortic cross-clamp
- Apostolic Catholic Church (Philippines)
- Apostolic Christian Church
- Appointments Committee of the Cabinet
- Arab Cooperation Council
- Arapahoe Community College
- Area control center
- Arizona Corporation Commission
- Army Cadet College
- Army Catering Corps
- Army Contracting Command
- Ascending chain condition
- Asia Cement Corporation
- Asia Culture Center
- Asian Club Championship
- Asian Cricket Council
- Asian Cultural Council
- Asian Cycling Confederation
- Asnuntuck Community College
- Assetto Corsa Competizione
- Assiniboine Community College
- Assistant Chief Constable
- Associated Catholic Colleges
- Associated Co-operative Creameries
- Association of Conservative Clubs
- Association of Corporate Counsel
- Atlanta Christian College
- Atlantic Coast Conference
- Austin Community College
- Australian Christian Channel
- Australian Christian Churches
- Australian Copyright Council
- Australian Criminal Intelligence Commission
- Automatic climate control
- Autonomous Cruise Control
- Barclays American
- Bullet
- Canadian Championship
- City of Adelaide
- Co-operative Retail Logistics
- Dairy Farmers of Britain
- Edmund P. Joyce Center
- Final Fantasy VII Advent Children
- Gwangju
- Kotoka International Airport
- Scotiabank Arena
- South Korea
- The Atlantic Council of Canada
- Touring and Automobile Club of Colombia
- United States Army Corrections Command