The Light Rail Transit (LRT), also known as the Light Rapid Transit, is the light rail component of Singapore's rail network, consisting of localised rail systems acting as feeder services to the Mass Rapid Transit network. The first LRT line was opened in 1999 and the system has since expanded to three lines, each serving a public housing estate.

The system is closer to an automated people mover system such as those found in many airports around the world than a traditional light rail system. All the lines are fully automated and elevated, and run on viaducts in order to save scarce land space in Singapore. A similar (though free-of-charge) system called Miami-Dade Metromover can be found in Miami, Florida in the United States.

Note that while both the old and the new Singapore Changi Airport Skytrain people mover is similar to the LRT, they are not part of the LRT system.

Lines are constructed by the Land Transport Authority, with operating concessions currently handed to SMRT Corporation and SBS Transit.

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