MTA

MTA may refer to:

Transportation

 * Metropolitan Transportation Authority, the public transport agency in the metropolitan area of New York City, United States
 * Metropolitan Transit Authority (disambiguation), which may refer to several public transport/transit agencies
 * Flint Mass Transportation Authority, Genesee County, Michigan
 * Maine Turnpike Authority, Maine
 * Manchester Transit Authority, New Hampshire
 * Maryland Transit Administration
 * Massachusetts Bay Transportation Authority, formerly Metropolitan Transit Authority
 * Massachusetts Turnpike Authority
 * Mendocino Transit Authority, California
 * Mountain Ash railway station, Wales, National Rail station code
 * Nashville Metropolitan Transit Authority, Tennessee
 * San Francisco Municipal Transportation Agency, California
 * Los Angeles County Metropolitan Transportation Authority
 * Mersin-Tarsus-Adana Railway, a defunct Ottoman railway company
 * Master Top Airlines, a defunct Brazilian airline company

Education

 * 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

Other

 * 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

Sports

 * 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

Science and technology

 * 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

Computing

 * 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

Gaming

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

Other uses

 * "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