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

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