LRT may stand for:
- IATA airport code for Lorient South Brittany Airport, France
- Lewis Roberts-Thomson
- Lithuanian National Radio and Television (Lietuvos nacionalinis radijas ir televizija)
- Light rail, a form of urban rail public transportation
- Urban rail transit systems in different cities and metropolitan areas named:
- Light Rail Transit
- Light Rapid Transit
- Likelihood-ratio test
- London Regional Transport, the organisation responsible for the public transport network in Greater London, UK from 1984-2000
- Long-running transaction
- Lothian Region Transport, the moniker applied to the municipally-owned bus operation in Edinburgh, Scotland from 1975-2000
- Louis Riel Trail, a highway in Saskatchewan, Canada