AEC

AEC is a three-letter acronym that may refer to:

• Architecture, Engineering and Construction
• 3-Amino-9-ethyl carbazole
• Academic Excellence Challenge, a scholars bowl for college students.
• Acoustic Echo Cancelling
• Adenylate Energy Charge, a measure for the energy state of a cell (biology)
• Aero Engine Controls, a Rolls Royce PLC and Goodrich Corporation Joint Venture
• African Economic Community
• Alabama Environmental Council
• Alliance Entertainment Corporation, a record label
• Aluminum Extruders Council
• Anand Engineering College
• Anti-Eviction Campaign, one of South Africa's big three social movements
• Approved Engine Course, in yachting
• Army Educational Corps, later the Royal Army Educational Corps
• Ars Electronica Center of Linz, Austria
• Art Ensemble of Chicago
• Asansol Engineering College
• Asian Entertainment Channel (or Astro AEC), a Malaysian pay-TV channel
• Assessment and Evaluation Commission, a peace agreement monitoring commission in Sudan
• Assets Scrutiny Committee of Thailand, a military-appointed committee to scrutinise the assets of Thaksin Shinawatra and his cabinet
• Associated Equipment Company, a British bus and lorry (truck) manufacturer
• Association Européenne des Conservatoire, or the European Association of Conservatoires
• Atlantic and East Carolina Railway
• Atomic Energy Commission, of various countries, especially:
  • United States Atomic Energy Commission
• Australian Electoral Commission
• Automatic exposure control, in radiography
• Automotive Electronics Council
• Certified Asthma Educator (AE-C)