MTI

MTI may refer to:

Government and military

 * Mastering the Internet, a mass surveillance project led by the British intelligence agency GCHQ
 * Military training instructor, the United States Air Force equivalent of a drill instructor

Technology

 * Message Type Indicator, in ISO 8583
 * Moving target indication, a radar signal processing technique used to distinguish targets from clutter

Organizations

 * Magyar Távirati Iroda, a Hungarian news wire agency
 * Ministry of Trade and Industry (Singapore), a ministry of the Government of Singapore
 * Mitchell Technical Institute, a community college in South Dakota, US
 * Music Theatre International, a musical theater licensing company
 * Midwest Technical Institute, a vocational school in Springfield, Illinois, US
 * MTI Home Video, a film distributor

Other uses

 * Master of Translation and Interpreting, a master's degree
 * Mother tongue influence, a form of language interference
 * Movie tie-in (book) edition of a book is often indicated by "(MTI)" after its title
 * Muppet Treasure Island, a 1996 Muppet film