MRT may refer to:
Transport Rapid Transit Systems Mass Rapid Transit (disambiguation) Mass Rapid Transit (Singapore) or Mass Rapid Transit, Singapore Malaysia Rapid Transit Corporation MRT Jakarta (Jakarta Indonesia) MRT (Bangkok) or Metropolitan Rapid Transit, Thailand Manila Metro Rail Transit System, Philippines Taipei MRT, Taiwan Taoyuan MRT, Taiwan
Others Moreton (Merseyside) railway station, England, code MRT Moroak Airport (ICAO code: MRT), see List of airports by IATA airport code: M
Computing Multiple Render Targets, in computer graphics mrt.exe, Windows Malicious Software Removal Tool Ferranti MRT (Market Research Terminal), a handheld computer
Geography Mauritania, ISO 3166-1 alpha-3 country code Martinique, ITU country code Mississippi River Trail, US
Science Mitochondrial replacement therapy Magnetic resonance tomography, also known as Magnetic Resonance Imaging Malignant rhabdoid tumour Mauritius Radio Telescope Mean radiant temperature, a measure of thermal comfort Mean residence time of matter in a volume Moral reconation therapy
Other uses Macedonian Radio Television Manor Racing team in Formula One Marginal rate of transformation, in economics Merrimack Repertory Theatre, a non-profit professional theatre in Lowell, Massachusetts Tupamaro (Venezuela), a Marxist group Midland Reporter-Telegram, a daily newspaper in Midland, Texas Miyazaki Broadcasting, a radio and television broadcaster in Miyazaki Prefecture, Japan Mountain Rescue Teams, a name for some independent volunteer rescue teams in England and Wales
See also Mississippi River and Tributaries Project (MR&T), US Mr. T, an American actor MTR, or Mass Transit Railway, Hong Kong