BRT may refer to:
- "Be right there" in Internet slang.
- Baltic Rubber Trade, Ltd., owner of the BRT trademark
- Bangkok BRT, officially bus rapid transit
- Bayrak Radyo Televizyon Kurumu (English: Bayrak Radio Television Corporation), the national public broadcaster of Northern Cyprus
- Belgische Radio- en Televisieomroep, a former name of the Vlaamse Radio- en Televisieomroep
- Bellarine Rail Trail in Victoria, Australia
- Big Red Truck - slang term for a fire engine
- Black Russian Terrier
- Block register territory, a method for dispatching trains
- Blood Red Throne, a five piece Death metal band from Kristiansand, Norway
- Bradford Robotic Telescope
- Brain Research Trust
- Brazilian Time, the standard timezone in Brazil, equivalent to UTC-03:00
- British Rail Telecommunications
- Brookhaven Rail Terminal
- Brooklyn Rapid Transit, a former transit holding company in New York City
- Brutto Register Tonnage, used (in a variety of forms) in several languages for Gross Register Tonnage, a measure of the carrying capacity of ships
- Burnout Racing Team
- Bus rapid transit
- Business Readiness Test
- Business Roundtable, a group of chief executive officers of major U.S. corporations formed to promote pro-business public policy
- BRT, or Base Resistance Controlled Thyristor