GR

GR may refer to:

Film and television

 * Golmaal Returns, a Hindi comedy film
 * Generator Rex, an animated sci-fi series
 * Guilty Remnant, a fictional cult in The Leftovers (TV series)

Music

 * Ghost Reveries, a 2005 album by Opeth
 * Good Riddance (band), an American punk group

Review websites

 * GameRevolution, run by Mandatory
 * GamesRadar+, run by Future plc
 * GoodReads, run by Amazon

Video games

 * GeneRally, a freeware racing game
 * Tom Clancy's Ghost Recon, a tactical shooter series

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

Country

 * Greece (ISO 3166/NATO: )

Cities

 * Grand Rapids, Michigan
 * Grand Rapids, Minnesota

Regions

 * Giurgiu County, Romania
 * Grisons, a Swiss canton (ISO: )
 * Groningen (province), Netherlands (ISO: )
 * Province of Grosseto, Tuscany, Italy

Settlements

 * Garden Reach, Kolkata, West Bengal, India
 * Grand Rapids, Michigan, United States

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
 * Graphics Resolution, a graphics mode for Apple II-family computers

Digital arts devices

 * 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
 * GR series guitar synthesizers produced since 1977 by the Roland Corporation of Japan

Geophysics

 * GR, METAR reporting code for hail ≥ 5&thinsp;mm in diameter
 * Gutenberg–Richter law, in seismology

Mathematics

 * Galois ring, in abstract algebra
 * Gradian, in geometry
 * Gradshteyn and Ryzhik, a calculus reference work
 * the Grassmannian, $$\operatorname{Gr}_k(V)$$

Physics

 * General relativity, Einstein's 1915 theory of gravity
 * Grashof number, in fluid dynamics

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

Other uses

 * G.R., for General Register, when citing Supreme Court cases in the Philippines
 * Gabriel Richard High School, a private high school in Michigan
 * Golden Retriever, a type of dog breed
 * Grain (measure) (gr), a unit of mass
 * Greetings & Readings, an independent bookseller
 * Gwoyeu Romatzyh, a system of romanization for Chinese