ACM or A.C.M. may refer to:
Aviation AGM-129 ACM, 1990–2012 USAF cruise missile Air chief marshal Air combat manoeuvring or dogfighting Air cycle machine Arica Airport in Amazonas Department, Colombia (IATA airport code ACM)
Computing Abstract Control Model, for USB to act as a serial port Association for Computing Machinery, a US-based international learned society for computing Asynchronous communication mechanism Audio Compression Manager, Microsoft Windows codec manager
Education Allegany College of Maryland Associated Colleges of the Midwest Association for College Management
Medicine Alcoholic cardiomyopathy, a disease of the heart muscle Arrhythmogenic cardiomyopathy, a disease of the heart muscle
Music Academy of Contemporary Music, in Guildford, England, UK Academy of Country Music Association for Contemporary Music, in the Russian Federation
Organizations or businesses African Content Movement, a South African political party Alliance for Community Media American Center for Mobility American Ceylon Mission Anaconda Copper Mining Company Anti-Coalition Militia, anti-NATO Taliban in Afghanistan Anti-cult movement Asian Civilisations Museum, Singapore Association for Computing Machinery, an international computing research society Association of Children's Museums Australasian Correctional Management Australian Community Media Australians for Constitutional Monarchy Netherlands Authority for Consumers and Markets (Dutch: Autoriteit Consument & Markt)
Technology Adaptive coding and modulation in wireless communication Advanced case management Alkyl acrylate copolymer, a type of rubber Aluminium composite material, used in sandwich panels Automated charging machine, a public mobile device charging station
Other uses Another Chicago Magazine, a magazine founded by Barry Silesky Antônio Carlos Magalhães (1927–2007), Brazilian politician AC Milan, an Italian association football club AC Monza, an Italian association football club AECOM, NYSE symbol Asbestos-containing material Attorney–client matching Automobile Club de Monaco, a motoring club based in Monaco Iraqi Arabic, ISO 639-3 language code A US Navy hull classification symbol: Auxiliary minelayer (ACM)