RT
# RT

RT may refer to:

## Arts and media

* RT (TV network), a Russian television news channel (formerly Russia Today)
   * RT America, defunct U.S. channel (2010–2022)
   * RT UK, defunct British channel (2014–2022)
   * RT France, defunct French channel (2014–2022)
   * RT Arabic, Arabic-language channel
   * RT Spanish, Spanish-language channel
   * RT Documentary, RT's documentary channel
* RT!, Canadian music-video director
* Radio Times, a British listings magazine
* Radio Thailand, a Thai public radio station
* Rooster Teeth, an entertainment production company
* Rotten Tomatoes, a review aggregator website

## Science and technology

### Biology and medicine

* Radiation therapy or radiotherapy
* Rapid test
* Reaction time, a term used in psychology
* Respiratory therapist
* Resuscitative thoracotomy
* Reverse transcriptase, an enzyme that transcribes RNA to DNA
* Richter's transformation, in chronic leukemia
* $R_{t}$ or effective reproduction number, a measure of the spread of an infection in epidemiology

### Computing and telecommunications

* IBM RT PC, a computer
* Windows RT, for ARM processors
* Radiotechnique, a French electronics manufacturer
* Radiotelephone
* Request Tracker, a ticketing system
* Retweeting, a sharing function on Twitter
* RT-Mobile, spun off from Rostelecom in Russia

### Other uses in science and technology

* RT (energy), the product of the gas constant (R) and temperature
* Relevance theory, a linguistic framework for understanding utterance interpretation

## Sports

* Russian Time, a Russian motor racing team
* Right tackle, in American and Canadian football

## Transportation

* R/T (Road/Track), a Dodge car performance designator
* AEC Regent III RT, London Transport bus, 1938–1979
* Rapid transit
   * Line 3 Scarborough of the Toronto Subway, Scarborough RT or "The RT"
* Sacramento Regional Transit District, SacRT or RT
* RT, abbreviation for route number in the US
* Airline UVT Aero (IATA code RT)

## Other uses

* Ruby Tuesday (restaurant) (NYSE symbol), a restaurant chain
* Rukun tetangga, an administrative division of Indonesia
