AAC

AAC may refer to:

Aviation

• Advanced Aircraft, a company from Carlsbad, California
• Alaskan Air Command, a radar network
• American Aeronautical Corporation, a company from Port Washington, New York
• American Aviation, a company from Cleveland, Ohio
• Amphibian Airplanes of Canada, a company from Squamish, British Columbia
• El Arish International Airport's IATA code

Education

• Art Academy of Cincinnati, a private college
• Augmentative and alternative communication, communication methods for individuals with difficulties communicating verbally
• Coimbra Academic Association, a Portuguese students' union

Military

• Airborne aircraft carrier, a type of aircraft
• Army Air Corps (United Kingdom), a component of the British Army
• Army Apprentices College, a former UK college
• Australian Army Cadets, a youth organisation
• Advanced Armament Corporation, a Freedom Group companies

Sports

• American Airlines Center, an arena in Dallas, Texas
• American Alpine Club, a leisure organization
• Appalachian Athletic Conference
• Western North Carolina Athletic Conference or Appalachian Athletic Conference
• Asian Amateur Championship, a golf tournament
• Associação Académica de Coimbra – O.A.F., a Portuguese football organization
• Association of Alabama Camps, a leisure organization
• Atlanta Athletic Club, a private athletic club in Duluth, Georgia
• Audax Alpine Classic, a bicycle event in Victoria, Australia

Other uses

• Advanced Audio Coding, an audio compression format
• Affirming Anglican Catholicism, a religious movement
• Agility Association of Canada, a dog organization
• Air arc cutting, a gouging process for metals
• Alameda Arts Council
• American Anglican Council, a religious organization
• Antibiotic associated colitis, a medical complication
• Antimicrobial Agents and Chemotherapy, an academic journal
• Ari language's ISO 639-3 language code
• Atlanta Astronomy Club, an amateur organization
• Australian Agricultural Company, a company
• Australian Aluminium Council, an industry association
• Auto Avio Costruzioni 815, a car by Ferrari
• Autoclaved aerated concrete, a building material