GM

GM or Gm may refer to:

Companies

 * General Motors, US automobile manufacturing company which was founded in 1908
 * Motors Liquidation Company, the US automobile manufacturing company known as General Motors Corporation from 1916 to 2009
 * General Mills, US food manufacturing company
 * Gunn & Moore, UK sports equipment company

Places

 * The Gambia, by ISO 3166 code
 * Germany, by FIPS 10-4 country code
 * Greater Manchester, England

Sports and gaming

 * RGM-79 GM, a mobile suit series in the video game Mobile Suit Gundam
 * Gamemaster or game master, a person officiating in a multiplayer role-playing game
 * Grandmaster (chess)
 * Grandmaster (martial arts)
 * GM (magazine)

Science and measurement

 * Geiger–Müller tube or G-M tube, a type of radiation detector
 * Genetic modification or genetically modified, manipulation of an organism's genome
 * Gigametre or gigameter (Gm), one billion metres
 * Silty gravel, in the Unified Soil Classification System
 * Standard gravitational parameter $$\mu=GM \ $$
 * Metacentric height, related to ship stability
 * Transconductance, an electronic component parameter
 * GM, unit of cross section named after Maria Goeppert Mayer

Other uses

 * Gm (digraph)
 * GM chassis or Gusenichnaya Machina, a Russian tracked vehicle chassis
 * G minor, chords and scale
 * General manager
 * General MIDI, a standardized specification for music synthesizers
 * Genital mutilation
 * George Medal, a UK, primarily civil, decoration for acts of great bravery
 * Gold master, a version of software to be distributed to customers, i.e. ready for release to manufacturing
 * Google Maps
 * Gunner's mate, a US Navy rating