GR may refer to:
Arts and entertainment
Cinematography Ricoh GR digital cameras, a series of digital cameras manufactured by Ricoh Ricoh GR (large sensor compact camera), the current line of cameras in the GR series Golmaal Returns, a Hindi comedy film Generator Rex, an animated sci-fi series Guilty Remnant, a fictional cult in The Leftovers (TV series)
Music GR series guitar synthesizers produced since 1977 by the Roland Corporation of Japan Ghost Reveries, a 2005 album by Opeth Good Riddance (band), an American punk group
Literature Greetings & Readings, an independent bookseller GoodReads, run by Amazon
Video games GameRevolution, run by Mandatory GamesRadar+, run by Future plc Tom Clancy's Ghost Recon, a tactical shooter series Gravity Rush, an action role-playing video game
Government and politics Georgius Rex (royal cypher: GR); see King George (disambiguation) George VI of the United Kingdom George V of the United Kingdom Globalise Resistance, a British anti-capitalist group Gonnema Regiment of the South African Army Government relations, or lobbying Government Resident, a diplomatic post G.R., short for General Register, the prefix for a case docket number in the Supreme Court of the Philippines
Places Greece (ISO 3166/NATO:GR) Grand Rapids, Michigan, United States Grand Rapids, Minnesota, United States Giurgiu County, Romania Grisons, a Swiss canton (ISO:CH-GR) Groningen (province), Netherlands (ISO:NL-GR) Province of Grosseto, Tuscany, Italy Garden Reach, Kolkata, West Bengal, India
Science and technology
Biochemistry Glucocorticoid receptor, a structure Glutathione reductase, an enzyme
Computing and Internet
.gr, Greece's top-level domain Google Reader, a defunct RSS reader service The low-resolution mode of Apple II graphics
Meteorology and physics GR, METAR reporting code for hail in diameter Gutenberg–Richter law, in seismology Grashof number, in fluid dynamics General relativity, Einstein's 1915 theory of gravity
Mathematics
Abstract algebra Galois ring Grassmannian, Associated graded ring,
Other uses in math Gradian, in geometry Gradshteyn and Ryzhik, a calculus reference work
Transport
Transport businesses London North Eastern Railway, Britain (reporting mark: GR) Aurigny Air Services, Guernsey (IATA designator: GR) Gemini Air Cargo, Virginia, US (defunct IATA designator: GR) Goodrich Corporation, an American tire and aerospace manufacturer Toyota Gazoo Racing, a motorsports division
Other transport uses GR footpath, a class of long-distance trail in western Europe Toyota GR engine, a petrol automotive engine series Green Line (Washington Metro), United States Capital Region Berliet GR, a range of heavy-duty trucks
Other uses Gabriel Richard High School, a private high school in Michigan Golden Retriever, a dog breed Grain (unit) (gr), an amount of mass Gwoyeu Romatzyh, a system of romanization for Chinese
See also
GRS (disambiguation) Ghost Rider (disambiguation) JR (disambiguation) RG (disambiguation) G (disambiguation) R (disambiguation) GR1 (disambiguation)