AEC may be:

• Acoustic Echo Cancelling, a type of signal processing commonly used in teleconferencing
• African Economic Community
• 3-Amino-9-ethyl carbazole, a chemical compound
• Architecture, Engineering and Construction, a method of organizing resources involving all three aspects of civil, mechanical and building design
• Army Educational Corps, part of the British Army which became the Royal Army Educational Corps in 1946
• Ars Electronica Center, an interactive museum for futuristic technologies in Linz, Austria
• AEC (Associated Equipment Company), a major British bus and lorry manufacturer from 1912 until 1979
• United States Atomic Energy Commission, a civilian organization that oversaw development of atomic science and technology from 1946 to 1974
• Australian Electoral Commission, which organises and supervises elections and voter enrolment in Australian federal elections
• Automatic exposure control, a device used in radiography to produced radiographs with consistent density
• Automotive Electronics Council, an organization based in the USA which sets qualification standards for the supply of components in the automotive electronics industry
• European Association of Conservatoires - Association Européenne des Conservatoire

AEC | AEC