QR may refer to:
Arts and entertainment
*
Nippon Cultural Broadcasting (from call sign JOQR), a Tokyo radio station
*
Queen's Radio
Queen's Radio (or QR) is a student radio station, broadcasting a wide variety of shows, based at Queen's University, Belfast, Northern Ireland, currently broadcasting via online stream.
Its studios are located in the Students' Union building. ...
, a student radio station at Queen's University Belfast
*
Quiet Riot, an American rock band
Businesses
*
Qatar Airways (IATA code)
*
Queensland Rail, a company responsible for the railway system in Queensland, Australia
*
Quintana Roo (company)
Quintana Roo (QR) was the first company to create a triathlon-specific wetsuit over 25 years ago, and then a tri-specific bicycle two years later. The company was founded in 1987 by Dan Empfield of Ironman fame and is currently owned by the Ameri ...
, a triathlon-specific wetsuit and bicycle company
Places
*
Quintana Roo, a state of Mexico
*
Karakalpakstan
Karakalpakstan, / officially the Republic of Karakalpakstan, / is an autonomous republic of Uzbekistan. It occupies the whole northwestern part of Uzbekistan. The capital is Nukus (' / ). The Republic of Karakalpakstan has an area of , and ...
(Qoraqalpog'iston Respublikasi), Uzbekistan (ISO 3166-2 subcode UZ-QR)
Science and technology
*
QR code (Quick Response code), a two-dimensional code
*
ATCvet code QR ''Respiratory system'', a section of the Anatomical Therapeutic Chemical Classification System for veterinary medicinal products
* DICOM Q/R,
DICOM
Digital Imaging and Communications in Medicine (DICOM) is the standard for the communication and management of medical imaging information and related data. DICOM is most commonly used for storing and transmitting medical images enabling the integ ...
Query / Retrieve
*
Nissan QR engine
Mathematics
*
QR decomposition, a decomposition of a matrix
*
QR algorithm, an eigenvalue algorithm using QR decomposition
*
Quadratic reciprocity, a theorem from modular arithmetic
*
Quasireversibility In queueing theory, a discipline within the mathematical theory of probability, quasireversibility (sometimes QR) is a property of some queues. The concept was first identified by Richard R. Muntz and further developed by Frank Kelly
Francis ...
, a property of some queues
*
Reaction quotient (Q
r), a function of the activities or concentrations of the chemical species involved in a chemical reaction
Other uses
* ''
Quarterly Review
The ''Quarterly Review'' was a literary and political periodical founded in March 1809 by London
London is the capital and largest city of England and the United Kingdom, with a population of just under 9 million. It stands on the River ...
'', a defunct literary and political periodical
*
Qatari riyal, the currency of Qatar
{{disambiguation
