| Acronym | Definition |
|---|
| ACN➣ACN, Inc. (not an acronym; formerly American Communications Network; Concord, NC) |
| ACN➣Australian Company Number |
| ACN➣Accenture (stock symbol) |
| ACN➣Accenture |
| ACN➣Advanced Computer Networks (course) |
| ACN➣Acetonitrile |
| ACN➣African Cup of Nations (sporting event) |
| ACN➣Automatic Collision Notification (US DOT) |
| ACN➣Australian College of Nursing |
| ACN➣Aid to the Church in Need (Catholic charity) |
| ACN➣American Communications Network (various locations) |
| ACN➣Automatic Crash Notification |
| ACN➣Automatic Client Netware |
| ACN➣Anglican Communion Network |
| ACN➣Automatic Crash Notification (GM OnStar) |
| ACN➣Athletic Club Northeast (fitness club; Atlanta, GA) |
| ACN➣Arabian Computer News (magazine) |
| ACN➣Ascension Island (STDN Station) |
| ACN➣Anglican Church in Nigeria |
| ACN➣Association for Comprehensive NeuroTherapy |
| ACN➣Aircraft Classification Number |
| ACN➣Academic Computer Network (various locations) |
| ACN➣Adventist Communication Network |
| ACN➣Association of Camp Nurses |
| ACN➣Air Cargo Netherlands |
| ACN➣Animal Compassion Network (North Carolina) |
| ACN➣All Communication Network (various locations) |
| ACN➣Area Code Number |
| ACN➣Australian Cancer Network |
| ACN➣American Comedy Network |
| ACN➣Advanced Control Network (entertainment lighting) |
| ACN➣Anti-Corruption Network for Transition Economies (Organisation for Economic Co-operation and Development) |
| ACN➣Airborne Communications Node |
| ACN➣Agence Chine Nouvelle (French: New China News Agency; China) |
| ACN➣Andean Community of Nations |
| ACN➣Aquatic Conservation Network |
| ACN➣Alumni Career Network (various schools) |
| ACN➣Architecture Centre Network (UK) |
| ACN➣American Community Newspapers, Inc. (Addison, TX; also seen as ACNI) |
| ACN➣Ante Christum Natum (Latin: Before the Birth of Christ) |
| ACN➣Australian Customs Notice (Australian Customs and Border Protection Service) |
| ACN➣Apple Consultant Network |
| ACN➣Alliance Carton Nature (French food packaging recycling association) |
| ACN➣Advance Change Notice |
| ACN➣Association of Consultants to Nonprofits |
| ACN➣Architectuurcentrum Nijmegen (Dutch: Nijmegen Architecture Centre; Netherlands) |
| ACN➣A. C. Nielsen Company (marketing research) |
| ACN➣Associate College Network (UK) |
| ACN➣Audit Control Number (banking) |
| ACN➣Asamblea Canaria Nacionalista (Canary Nationalist Party) |
| ACN➣Association de Comptabilité Nationale (French: National Accounting Association; est. 1983) |
| ACN➣ASEAN (Association of Southeast Asian Nations) Creative Network (Japan) |
| ACN➣America's Collectables Network |
| ACN➣Acoustic Neurinoma |
| ACN➣Associate Charge Nurse (Victoria, Australia) |
| ACN➣Administrative Change Notice |
| ACN➣Assign Commercial Network |
| ACN➣Adaptive C4ISR Node |
| ACN➣Automatic Celestial Navigation |
| ACN➣America Coasters Network (roller coasters) |
| ACN➣Account Control Number |
| ACN➣Agreement Change Notice |
| ACN➣Alternate Contact Name |
| ACN➣Association des Cinéphiles de Nabeul (French: Nabeul Association of Moviegoers; Tunisia) |
| ACN➣Area Control Network (computer science) |
| ACN➣Australia Campus Network |
| ACN➣l'Association Canadienne de Numismatique (Canadian Numismatic Association) |
| ACN➣Audiotext Communications Network, Inc. |
| ACN➣Automobile Club de Nice (French: Automobile Club of Nice; Nice, France) |
| ACN➣All Commercial Network |
| ACN➣Authorization Change Notice |
| ACN➣Action Control Number |
| ACN➣Activity/Authorized Control Number |
| ACN➣Automatic Change Notification |
| ACN➣Abbreviated Contract Number |
| ACN➣ATM Core Network |
| ACN➣Aircraft Condition Notice (FAA Form 8620-1) |
| ACN➣Assignment Control Number |
| ACN➣Airborne Communications Network |
| ACN➣Assigned Channel Number |
| ACN➣Athlétic Club Neufchâteau (French athletic club) |
| ACN➣Allowance Change Notice |
| ACN➣Américan Car Namurois (French; Belgian car club) |