| Acronym | Definition |
|---|
| ACB | Assassin's Creed Brotherhood (video game) |
| ACB | American Council of the Blind |
| ACB | Asia Commercial Bank |
| ACB | Alliance for the Chesapeake Bay |
| ACB | Association for Clinical Biochemistry (est. 1953) |
| ACB | Anti Corruption Bureau (Malawi) |
| ACB | Adjusted Cost Base |
| ACB | Asean Centre for Biodiversity (Los Banos, Philippines) |
| ACB | America's Community Bankers |
| ACB | Air Circuit Breaker (electric power distribution systems) |
| ACB | Australian Classification Board (est. 1970) |
| ACB | Auckland Central Backpackers |
| ACB | Association of Clinical Biochemists |
| ACB | Association de Culture Berbère (French: Berber Culture Association) |
| ACB | Amphibious Construction Battalion (US Navy) |
| ACB | Alberta Cancer Board |
| ACB | Albumin Cobalt Binding |
| ACB | Asociación de Clubes de Baloncesto (Spanish basketball league) |
| ACB | Advanced Communicator - Bronze (Toastmasters) |
| ACB | Advertising Checking Bureau |
| ACB | Association of Concert Bands (Corning, NY) |
| ACB | Agricultural Credit Bank |
| ACB | Acería Compacta de Bizkaia (Spain) |
| ACB | As Cities Burn (band) |
| ACB | Antigua Commercial Bank |
| ACB | Application Control Block |
| ACB | Annoyance Call Bureau |
| ACB | Access Control Block |
| ACB | Annular Confinement Beam (Star Trek) |
| ACB | Adapter Control Block |
| ACB | Athletic Club Bilbao (Spanish football team) |
| ACB | Advanced Capability Build (Aegis combat system; US Navy) |
| ACB | Automated Clearing Bureau |
| ACB | American Church in Berlin (Berlin, Germany) |
| ACB | Art Contemporain en Bretagne (French: Contemporary Art in Britain) |
| ACB | antibody-coated bacteria |
| ACB | Associazione Calcio Bellinzona (Soccer Association of Bellinzona, Switzerland) |
| ACB | Alabama Council of the Blind |
| ACB | Architectural Control Board |
| ACB | Asphalt-Concrete Base |
| ACB | Access Barred Signal |
| ACB | Ashland City Band (Ashland, OR) |
| ACB | Army Classification Battery |
| ACB | Agence Culturelle Bretonne (French: Breton Cultural Agency) |
| ACB | Alberta Congress Board (Canada) |
| ACB | All City Band |
| ACB | Atlanta Concert Band (Lawrenceville, GA) |
| ACB | Alpharetta City Band |
| ACB | Alumni Control Board |
| ACB | Air Curtain Burner |
| ACB | Angevine de Construction Bois (French wood construction company; Etriche, France) |
| ACB | Air-Operated Circuit Breaker |
| ACB | Auburn Community Band (Auburn, ME) |
| ACB | Asheville Community Band (Asheville, NC) |
| ACB | Armstrong Concert Band |
| ACB | Arlington Community Band (Arlington, TX) |
| ACB | Advanced Communications Board |
| ACB | Analysis Control Board |
| ACB | Advanced Concepts Base |
| ACB | Alpine Community Band (Alpine, TX) |
| ACB | Analog Conditioning Board |
| ACB | Air Contingency Bulletin |
| ACB | Administrative Contract Brief |
| ACB | Air Combat Brigade |
| ACB | Air Crew Brief |
| ACB | Anti Chop Bolt (paintball guns) |
| ACB | Airman Classification Battery |
| ACB | Asociación Cristiana de Beneficencia (Christian Welfare Association, Guatemala) |
| ACB | Automated Collection Branch |
| ACB | Aircraft Certification Board |
| ACB | Aortic Coronary Bypass |
| ACB | Aluminium Center Belgium (Belgian aluminum processor; Zellik, Belgium) |
| ACB | Air Crew Bulletin |
| ACB | American Composite Breed (synonym for mutt or mongrel as in an unpedigreed dog) |
| ACB | Association Canadien des Brasseurs (Brewers Association of Canada) |
| ACB | Anarchist's Cook Book |
| ACB | Alternate Control Center |
| ACB | Articles pour le Commerce et le Bureau (French office supply company) |
| ACB | Aquarium Club de Beaucaire (French: Aquarium Club of Beaucaire; Beaucaire, France) |
| ACB | Assurances et Crédits Béjanin (French insurance company; Grenoble, France) |
| ACB | Association of Christian Broadcasters (various locations) |
| ACB | Advisory Council Board (various organizations) |
| ACB | Advanced Call Blocker (mobile phone application) |
| ACB | Australian Corrugated Box Co. (manufacturer) |
| ACB | Analisi Costi Benefici (Italian: Cost-Benefit Analysis) |
| ACB | Accepted Certification Body |
| ACB | Australian Cricket Board |
| ACB | Automatic Call-Back |