IRT may refer to:

Science and technology

Imagery rehearsal therapy Imagery is visual symbolism, or figurative language that evokes a mental image or other kinds of sense A sense is a biological system used by an organism for sensation, the process of gathering information about the world through the dete ...

, a treatment for nightmare disorders * Immunoreactive trypsinogen, newborn screening test for cystic fibrosis * Infrared thermography * Infrared Telescope (IRT), carried on Space Shuttle mission

STS-51-F STS-51-F (also known as Spacelab 2) was the 19th flight of NASA's Space Shuttle program and the eighth flight of Space Shuttle ''Challenger''. It launched from Kennedy Space Center, Florida, on July 29, 1985, and landed eight days later on A ...

* Item response theory, to interpret psychometric tests

Television

* ''

Ice Road Truckers ''Ice Road Truckers'' (commercially abbreviated ''IRT'') is a reality television series that premiered on History Channel, on June 17, 2007. It features the activities of drivers who operate trucks on seasonal routes crossing frozen lakes an ...

'', a reality television series *

International Response Team ''Criminal Minds: Beyond Borders'' is an American police procedural television series created by Erica Messer that aired on CBS from March 16, 2016, to May 17, 2017. The show is produced by The Mark Gordon Company in association with CBS Tele ...

, a fictional body in ''Criminal Minds''

Other uses

* IR Tanger, a Moroccan association football club * Incident response team, a group of people who prepare for and respond to any emergency incident * Indiana Repertory Theatre, Indianapolis, US * Institut für Rundfunktechnik, a German research institute for broadcasters *

Interborough Rapid Transit Company The Interborough Rapid Transit Company (IRT) was the private operator of New York City's original underground subway line that opened in 1904, as well as earlier elevated railways and additional rapid transit lines in New York City. The IRT ...

, former New York City Subway operator * ''

International Registry of Tartans The Scottish Tartans Authority (STA) is a Scotland-based organisation dedicated to preserving and promoting knowledge of Scottish tartans and Highland dress. It was formed in 1996 by former members of the Scottish Tartans Society (STS). The ...

'', a textile database also known as ''TartanArt'' {{disambig