MT
- mt – (s) Maltese language (ISO 639-1 code)
- mT – (s) Millitesla
- Mt – (s) Meitnerium
- MT
- (s) Malta (FIPS 10-4 country code; ISO 3166 digram)
- Megatesla
- Montana (postal symbol)
- (i) Motor Transport (military)
- MTA
- (i) Metropolitan Transportation Authority (Boston) (now Massachusetts Bay Transportation Authority)
- Metropolitan Transportation Authority (New York)
- MTBF – (i) Mean Time Between Failures
- MTF
- (i) Medical Treatment Facility
- Message Text Format
- MTG – (i) Magic: The Gathering
- MTL
- (s) Maltese lira (ISO 4217 currency code)
- (i) Mean Tide Level (nautical charts)
- MTM – (i) Methods-Time Measurement
- MTOE – (p) Modified Table of Organization and Equipment ("emm-toe")
- MTP
- (i) Maritime Tactical Publication
- Materiel Transfer Plan
- Mission Training Plan
- MTQ – (s) Martinique (ISO 3166 trigram)
- MTR
- (i) Main and Tail Rotor (helicopter type)
- Mass Transit Railway (Hong Kong metro system)
- Military-Technological Revolution
- MTS
- (i) Maintenance Training System
- Manitoba Telecom Services
- Michigan Terminal/Timesharing System
- Movement Tracking System
- Multichannel television sound
- Multi-Technical Services
- MTT – (p) Methylthiazol tetrazolium (assay)
- MTU – (i) Tankovei Mostoukladchik (Russian Танковый Мостоукладчик, "Tank Bridge-Layer") †
- MTV
- (i) MainosTeleVisio (Finnish commercial TV company)
- Music TeleVision
- MTVL – (i) Mobile Tracked Vehicle, Light
- MTWS – (i) MAGTF Tactical Warfare System
Read more about this topic: List Of Acronyms And Initialisms: M