MCA

MCA may refer to:

Astronomy

Minimum crossing altitude, a minimum obstacle crossing altitude for fixes on published airways
Medium Combat Aircraft, a 5th generation fighter aircraft being developed by India
Macenta Airport, Guinea (by IATA code)

MacConkey agar, a selective growth medium for bacteria
Monochloroacetic acid, carboxylic acid, manufactured by chlorinating acetic acid
Methylcholanthrene, a carcinogen
Methyl cyanoacrylate, an organic compound
Metabolic control analysis, analysing how the control of fluxes and intermediate concentrations in a metabolic pathway is distributed
Middle cerebral artery, one of the three major blood supplies to the brain

MCA Inc., a now defunct company (originally called Music Corporation of America) and its subsidiary companies:
- MCA Records
- MCA Nashville Records
- MCA Home Video, former name of Universal Studios Home Entertainment
- MCA Music Inc. (Philippines), a Philippine branch of Universal Music Group which uses the MCA brand due to a trademark issue
Maubeuge Construction Automobile (MCA), a subsidiary of French car manufacturer Renault
Minato Communications Association, a former company name of the Japan Electronics and Information Technology Industries Association

Master in Customs Administration, a trade-related degree offered in PMI Colleges (Philippines)

Master of Computer Applications, a three-year professional master's degree in Computer Science/Applied Computer Science awarded in India

Maranatha Christian Academy, the former name of National Christian Life College, Marikina, Philippines
Marist College Ashgrove, an Australian School
McIntosh County Academy, a high school in McIntosh County, Georgia, United States
Memphis College of Art, an art school in Tennessee, United States
Morrison Christian Academy, an American school in Taiwan

Maharashtra Chess Association
Malaysian Chinese Association, a political party in Malaysia
Maritime and Coastguard Agency, an agency of the United Kingdom Government
Medicines Control Agency, which joined with the Medical Devices Agency to become the Medicines and Healthcare products Regulatory Agency
Metal Construction Association
Millennium Challenge Account, a U.S. program for aid to developing countries
Ministry of Corporate Affairs, an Indian government ministry
MultiCultural Aotearoa, a New Zealand political action group
Mumbai Cricket Association, ruling body for cricket in Mumbai
Multicore Association, an industry association regrouping companies and universities interested in multicore computing research.
Museum of Contemporary Art Australia, in Sydney

MC Alger, a football club based in Algiers, Algeria
Manitoba Curling Association, Manitoba, Canada
Maharashtra Cricket Association, Pune, India
- Maharashtra Cricket Association Stadium, Pune, India
Mumbai Cricket Association, Mumbai, India

Machine Check Architecture, a method for a CPU to report hardware errors to an operating system
Maximum credible accident, a postulated scenario that a nuclear facility must be able to withstand
Micro Channel architecture, a type of computer bus
Mitsubishi MCA, an emissions control approach for gasoline-powered vehicles during the 1970s
Movable cellular automaton
Multichannel analyzer, a gamma ray spectroscopy system for measuring counts at different voltage levels

Depository Institutions Deregulation and Monetary Control Act, a US financial statute passed in 1980
Mental Capacity Act 2005, is an Act of the Parliament of the United Kingdom applying to England and Wales.
Medieval Climate Anomaly
Motor Coach Age, the magazine of the Motor Bus Society
Multiple correspondence analysis
Museum of Contemporary Art (disambiguation), numerous museums around the world
The US Military Commissions Act of 2006