Mass Rapid Transit

Mass Rapid Transit in general refers to a fully grade separated heavy-rail metro system.

The term may also specifically refer to:
 * Chennai Mass Rapid Transit System, a rapid transit system in Chennai, India
 * Jakarta Mass Rapid Transit, a rapid transit system in Jakarta, Indonesia
 * Kaohsiung Mass Rapid Transit or Kaohsiung Metro, a rapid transit and light rail system in Kaohsiung, Taiwan
 * Mass Rapid Transit Authority of Thailand, a government agency responsible for overseeing the operation of rapid transit systems in Thailand
 * Mass Rapid Transit (Bangkok) or Metropolitan Rapid Transit, Thailand
 * Mass Rapid Transit (Malaysia), a rapid transit system in Greater Kuala Lumpur and Johor Bahru, Malaysia
 * Mass Rapid Transit Corporation (Malaysia), the developer and asset owner of the Mass Rapid Transit project
 * Mass Rapid Transit (Singapore), a rapid transit system in Singapore
 * Taichung Mass Rapid Transit or Taichung Metro, a rapid transit system in Taichung, Taiwan
 * Taipei Mass Rapid Transit or Taipei Metro, a rapid transit system in Taipei, Taiwan
 * Taoyuan Mass Rapid Transit System or Taoyuan Metro, a rapid transit system in Taoyuan, Taiwan