| Acronym | Definition |
|---|
| GM | General Motors |
| GM | General Manager |
| GM | Good Morning |
| GM | Grand Master |
| GM | Geometric Mean |
| GM | Genetic Modification |
| GM | Germany |
| GM | Game Master |
| GM | General MIDI |
| GM | Game Maker (software) |
| GM | Genetically Modified |
| GM | Gold Medal |
| GM | General Mills |
| GM | Grand Marquis (auto model) |
| GM | Green Machine (nickname for The Cavaliers Drum and Bugle Corps, Rosemont, IL) |
| GM | Gambia |
| GM | General Meeting (various organizations) |
| GM | Genetic Manipulation |
| GM | Group Manager |
| GM | Gross Margin |
| GM | General Merchandise |
| GM | Greater Manchester (UK) |
| GM | Gray Matter |
| GM | Growth Medium |
| GM | General Market |
| GM | Great Move (online chess) |
| GM | Gastric Mucosa (stomach) |
| GM | Great Minds |
| GM | Gospel Music |
| GM | Google Mail |
| GM | Good Match |
| GM | Genéticamente Modificado (Spanish: Genetically Modified) |
| GM | Grey Market (trade; aka Gray Market) |
| GM | Got Milk? |
| GM | Global Moderator |
| GM | Gas Mask |
| GM | Group Message |
| GM | Gray Market (trade; aka Grey Market) |
| GM | Guided Missile |
| GM | Germanic (linguistics) |
| GM | General Music |
| GM | Guild Master |
| GM | Gorillamask (website) |
| GM | Goldmember (Austin Powers movie) |
| GM | Grand Marnier (liqueur) |
| GM | transconductance |
| GM | Goat's Milk |
| GM | Global Mechanism (UN Convention to Combat Desertification) |
| GM | Godmodding (gaming) |
| GM | Game Moderator (online multiplayer games) |
| GM | Global Motors |
| GM | Green Manure |
| GM | Gold Master (final/master copy of a software product release) |
| GM | God's Message |
| GM | Grant Morrison (comic book writer) |
| GM | German Measles |
| GM | Girly Man |
| GM | Gold Medallion (Delta Sky Miles Program) |
| GM | General Major (German) |
| GM | Garry's Mod (Half-Life2 modification) |
| GM | Gunner's Mate (US Navy and US Coast Guard rating) |
| GM | Grand Marshall |
| GM | Geiger-Müller |
| GM | Gluteus Maximus |
| GM | Gun Mount |
| GM | Gigameter |
| GM | George Medal |
| GM | Growth Monitoring |
| GM | Gravity Model |
| GM | Republic of Gambia |
| GM | General Mayhem (game) |
| GM | Giant-Man (comic) |
| GM | Metacentric Height |
| GM | Goal Management |
| GM | Global Memory |
| GM | Gingival Margin |
| GM | Green Mother (gaming) |
| GM | Ground Mobile |
| GM | Air Senegal International (ICAO code) |
| GM | God Machine |
| GM | General Merit |
| GM | Government Mule (band) |
| GM | Globally Minded (fair trade products) |
| GM | Grateful Med |
| GM | Guru Meditation (Amiga OS error) |
| GM | General Magistrate (Florida law) |
| GM | Geodetic Mission |
| GM | Ground Mapping |
| GM | Galveston to Mississippi River (routing designation; US Navy) |
| GM | Silty Gravels (soil type) |
| GM | Group Modem |
| GM | Gambler Master (USDAA dog agility title) |
| GM | Grotesque Mask (Everquest gaming) |
| GM | Group Metric |
| GM | Grand Multipara |
| GM | Guard Mail |
| GM | Gloria Macarenko (CBC News Anchor) |
| GM | Geospace Mission |
| GM | Guidance Manager |
| GM | Gouvernements Marine (Dutch) |
| GM | Grupos de Métodos (Spanish: group of methods) |
| GM | Gravity Field and Mass Determination Measurements (NASA) |
| GM | Gainesville Midland Railroad Company |
| GM | General Maintenance Aptitude Area |
| GM | Generator Matrix/Matrices |