MTA

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Organizations

Hungarian Academy of Sciences (Magyar Tudományos Akadémia), Budapest, Hungary
Marsha Stern Talmudical Academy, an Orthodox Jewish private high school in New York, New York, US
Mount Allison University, a university in Sackville, New Brunswick, Canada
Musical Theatre Academy, a drama college based in London, UK

Metrolina Theatre Association, an organization which advocates performing arts in Charlotte, North Carolina, US
MTA Records, More Than Alot Records, a record label
Muslim Television Ahmadiyya International, a satellite television network
Move to Amend, a U.S. political advocacy organization that seeks to amend the Constitution
Manufacturing Technologies Association, a UK trade association
Market Technicians Association, a non-profit organization of technical analysts
General Directorate of Mineral Research and Exploration (Turkey), known as MTA
Michigan Townships Association, an association of US township governments
Mong Tai Army, an armed rebel group
Metro Transit Assassins, a graffiti collective

Maccabi Tel Aviv, a sports club in Israel
- Maccabi Tel Aviv B.C., basketball team
- Maccabi Tel Aviv F.C., football (soccer) team
Maximum time aloft, a sporting event with a boomerang

methylthioadenosine, a cofactor in biochemistry
4-Methylthioamphetamine, a designer drug of the substituted amphetamine class developed in the 1990s
Material transfer agreement, governing the transfer of research materials between two organizations
Mineral trioxide aggregate, dental material, used in endodontics and vital pulp therapy
MTA (Swedish: Mobiltelefonisystem A), a former manual mobile network in Sweden
Medial temporal lobe type of brain atrophy.
Mousterian of Acheulean tradition _(fr), a cultural and technological facies of the Mousterian

Cray MTA-2, a supercomputer based on the design of the never-built Tera MTA
Message transfer agent or mail transfer agent, software that transfers e-mail between computers
Multi-touch attribution is a form of attribution (marketing)
Multimedia terminal adapter, a combination cable modem and telephone adapter
Multi-Threaded Apartment, a concept used in Microsoft's Component Object Model programming architecture
Microsoft Technology Associate, a certification scheme run by Microsoft

Multi Theft Auto, a mod for computer games in the PC game series Grand Theft Auto

"M.T.A." (song), or "Charlie on the M.T.A.", a 1959 hit song by The Kingston Trio
Major trading area, a geographic region of the US surrounding a major city; See List of Basic Trading Areas
Mall Taman Anggrek, a shopping center in West Jakarta, Indonesia
Mid-term adjustment, a change in an insurance policy
Military Technical Agreement, treaty ending the Kosovo War in June 1999
Milk Tea Alliance, an online democracy and human rights movement
Farmall M-TA, a widely used model in the Farmall M tractor series
UAC/HAL Il-214 Multirole Transport Aircraft, a planned medium-lift military transport