GM

'GM' is most commonly seen as an abbreviation for:

★ General Motors Corporation, an American automobile manufacturing company

★ Genetically modified, (a living thing) having its DNA intentionally changed for a particular outcome

★ Metacentric height, characteristic of a ship primarily determining its stability in the water.
In astronomy,

★ the product ''GM'' is the standard gravitational parameter.
GM is also an abbreviation for:

★ Gary Moore, an Irish guitarist

★ The Republic of The Gambia, a country in Africa (ISO 3166 diagram)

★ Grandmaster (chess) or International Grandmaster, a chess ranking

★ Grand Marquis, a Ford Mercury automobile marque

★ General Mills, a food manufacturing company

★ General manager of an organisation, including sporting teams

★ Game Maker, a computer game developing program

★ Gamemaster or Game Master, in play-by-mail games and role-playing games

★ Gamemaster (board game series), a series of board games created by Milton Bradley

★ GamesMaster (magazine), a video game publication in the UK

★ Garry's Mod, a modification for the computer game Half Life 2

★ The General MIDI standard specification

★ ''Göttinger Miszellen'', a German scientific journal on Egyptology

★ Gold medal. In the UK rifle shooting community, a person who has won Her Majesty the Queen's Prize at Bisley, Surrey may subsequently put the letters GM ('gold medal') after his/her name

★ Goppert-Mayer unit, the unit used for measure of two-photon cross-section, equal to 10^-50 cm⁴ s

★ Grammatical modality, the mode in which the grammar of a sentence is constructed

★ Gross margin, profit as a percentage of sales price

★ The RGM-79 GM mobile suit and its successors in the anime series Mobile Suit Gundam

★ GM1, a Ganglioside important in brain biochemistry

★ A Unified Soil Classification System symbol for silty gravel
'Gm' may mean:

★ gigametre, an SI unit of length equal to 10⁹ (1,000,000,000) metres.
'gm' may mean:

★ An erroneous abbreviation for gram (the correct symbol is 'g').