# G (disambiguation)

G is the seventh letter of the Latin alphabet.
G may also refer to:

## Places

* Gabon, international license plate code G
* Glasgow, UK postal code G
* Eastern Quebec, Canadian postal prefix G
* Melbourne Cricket Ground in Melbourne, Australia, also known as "the 'G"

## Arts, entertainment and media
### Fictional characters

* G, a fictional character in the game Club Penguin
* G, a fictional character in Sega's The House of the Dead series
* G (Street Fighter), a fictional character in the Street Fighter series
* Mr G, or Mr Gregson, a fictional character in the Australian TV comedy Summer Heights High

### Films

* G (2002 film), by Christopher Scott Cherot
* G (2004 film), a documentary about methamphetamine use among the Navajo
* The G (film), 2023 film written, directed, and produced by Karl R. Hearne

### Music
#### Notation

* G (musical note)
* G major chord, Chord names and symbols (popular music)

#### Albums

* G (Gerald Levert album)
* G (King Creosote album)
* G. (album), an album by Gotthard

#### Other music

* "G", a song by Avenged Sevenfold from the album Life Is But a Dream...
* A prefix used to denote the Gérard catalog, a catalogue of Luigi Boccherini's works compiled by Yves Gérard

### Rating systems

G is a common type of content rating that applies to media entertainment, such as films, television shows and computer games, generally denoting "General Audience" or "General Patronage" meaning that access is not restricted. The following organizations all use the rating:
* Australian Classification Board
* Canadian motion picture rating system
* Eirin
* Irish Film Classification Office
* Media Development Authority
* Motion Picture Association of America film rating system
* Movie and Television Review and Classification Board
* National Bureau of Classification (NBC)
* Office of Film and Literature Classification (New Zealand)
The "G" rating is further documented at Motion picture content rating system and Television content rating system.

### Other arts, entertainment and media

* G. (novel), by John Berger
* G (magazine)
* G, the production code for the 1964 Doctor Who serial The Sensorites
* The G logo for the Brazilian television network Gazeta in São Paulo since 2000

## Brands and enterprises

* The Gillette Company, ticker symbol G on the New York Stock Exchange

## Mathematics and science
### In astrophysics

* G, a stellar classification for yellowish stars
* G, part of a provisional designation in astronomy for any comet, asteroid, or minor planet discovered between April 1 and 15

### In chemistry and biology

* ATC code G, Genito-urinary system and sex hormones, a section of the Anatomical Therapeutic Chemical Classification System
* Ganesha (psychedelic) (G), a psychedelic drug
* G protein, a family of proteins
* G factor (psychometrics)
* Gamma-Hydroxybutyric acid, a drug more commonly known as GHB
* Glycine, an amino acid
* Guanosine, a nucleoside
* Haplogroup G (mtDNA), a human mitochondrial haplogroup
* Haplogroup G (Y-DNA), a Y-chromosome haplogroup

### In computing

* "G", the visual programming language LabVIEW is based on
* G, a synonym for the binary prefix gibi

### In linguistics

* ɢ, a symbol in IPA for voiced uvular plosive
* ɡ, a symbol in IPA for voiced velar stop

### In mathematics

* $G$, Catalan's constant
* $G$, Graham's number
* $g$, a metric tensor
* $G$, any of various $G$-functions

### In physics
#### With respect to electromagnetism

* G band (disambiguation)
* Gauss (unit), a unit of magnetic induction
* G, electrical conductance

#### With respect to gravitation

* Einstein tensor, G, in general relativity
* Gravitational constant, G, an empirical physical constant
* Graviton (G), a fundamental particle theorized to mediate the gravitational interaction
* Gravity of Earth, g, the local acceleration due to gravity
** g-force, the acceleration of a body relative to free fall
** Standard gravity (g$_0$ or g$_n$), the standardised acceleration due to gravity on Earth

#### Other uses in physics

* Gibbs free energy, a function of thermodynamics
* Gluon (g), a fundamental particle which mediates the strong interaction
* Shear modulus, in materials science, the ratio of shear stress to shear strain in a material

### In scales, weights and measures

* G, giga-, an SI prefix meaning 10$^9$ = 1,000,000,000
* g, gram, a unit of mass in the SI and CGS systems
* General intelligence factor, or "g factor", in psychometrics
* G, Birmingham gauge, used to measure the diameter of hypodermic needles

## Slang

* G, US slang for a thousand dollars
* Gangsta, in hip hop culture, the word for a person or a style

## Transportation

* G (Los Angeles Railway)
* G (New York City Subway service), the G Brooklyn–Queens Crosstown Local, a rapid transit service
* G, the aircraft registration prefix for the United Kingdom
* G Line (Los Angeles Metro)
* SEPTA Route 15, a SEPTA Metro service, labeled G
* Tokyo Metro Ginza Line, a subway service operated by the Tokyo Metro, labeled
* , the official West Japan Railway Company service symbol for the Fukuchiyama Line.

## Other uses

* Geraint Thomas (born 1986), Welsh professional cyclist commonly referred to as G
* G the ground floor, particularly in elevators
* G, an ITU prefix for radio and television call signs in the United Kingdom
* 'g', the growth rate, in the dividend discount model approach to financial valuation
* Dominical letter G for a common year starting on Monday
* Golf, the military time zone code for UTC+07:00
* G (or the more specific G-4 or G-6), a relatively poor grade of coin
* G (short for "Greek") in biblical criticism refers to the Septuagint, the oldest extant translation of the Hebrew scriptures into Greek.
* Guard (gridiron football)