MTA

MTA may refer to:

• 4-Methylthioamphetamine
• Manufacturing Technologies Association, UK trade association
• Material transfer agreement, governing the transfer of research materials between two organizations
• Metastasis-associated protein:
  • MTA1
  • MTA2
  • MTA3
• Mid-Term Adjustment, a change in an insurance policy
• Mineral trioxide aggregate, dental filling material, mostly used in endodontics

Public transportation

• Mersin-Tarsus-Adana Railway, defunct Ottoman railway company
• Agence métropolitaine de transport (Metropolitan Transportation Agency), Montreal, Canada
• Manchester Transit Authority
• Metropolitan Transit Authority (Victoria), Melbourne, Australia

United States

• Metropolitan Transportation Authority (New York)
• Des Moines Area Regional Transit, Iowa
• Erie Metropolitan Transit Authority, Pennsylvania
• Flint Mass Transportation Authority, Genesee County, Michigan
• Los Angeles County Metropolitan Transportation Authority, California
• 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
• Metropolitan Transit Authority of Harris County, Texas
• Metropolitan Transit Authority (Miami-Dade), Florida
• Nashville Metropolitan Transit Authority, Tennessee
• San Francisco Municipal Transportation Agency, California
• Topeka Metropolitan Transit Authority, Kansas

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
• MTA, former manual mobile network in Sweden
• Multimedia Terminal Adapter, a combination cable modem and telephone adapter
• Multi-Threaded Apartment, used in Microsoft's Component Object Model programming architecture

Gaming, sports and entertainment

• Maccabi Tel Aviv, Israeli sports club best known for its basketball and football (soccer) teams
  • Maccabi Tel Aviv B.C., basketball team
  • Maccabi Tel Aviv F.C., football (soccer) team
• Mage: The Awakening, role-playing game developed by White Wolf, Inc. based in their World of Darkness setting
• Maximum time aloft, a sporting event with a boomerang
• "M.T.A." ("Charlie on the M.T.A."), a 1959 hit song by The Kingston Trio
• Multi Theft Auto, a mod for computer games in the PC game series Grand Theft Auto

Government and military

• Michigan Townships Association, United States, an association of township governments
• Military Technical Agreement, treaty ending the Kosovo War in June 2009
• UAC/HAL Il-214 Multirole Transport Aircraft, a planned medium-lift military transport
• General Directorate of Mineral Research and Exploration (Turkey), known as MTA

Media

• Muslim Television Ahmadiyya International, a satellite television network run by the Ahmadiyya Muslim Community:
  • MTA 1
  • MTA 2
  • MTA 3

Schools

• Hungarian Academy of Sciences (Magyar Tudományos Akadémia), Budapest, Hungary
• Marsha Stern Talmudical Academy, an Orthodox Jewish private high school in New York, New York, United States
• Mount Allison University, a university in Sackville, New Brunswick, Canada