| Acronym | Definition |
|---|
| GMM | Good Mythical Morning |
| GMM | Gaussian Mixture Model |
| GMM | Generalized Method of Moments (economics) |
| GMM | General Membership Meeting |
| GMM | GPRS Mobility Management |
| GMM | General Merchandise Manager (job title) |
| GMM | Global Management and Manufacturing (degree; Denmark) |
| GMM | Global Marijuana March |
| GMM | Global Market Manager (various companies) |
| GMM | General Maintenance Manual |
| GMM | Genetically Modified Microorganisms |
| GMM | Gimar Montaz Mautino (French ski equipment company) |
| GMM | George Mason Mortgage (Fairfax, VA) |
| GMM | Give Me Money |
| GMM | Giovanotti Mondani Meccanici (Italian multimedia artistic group) |
| GMM | Good Mobile Messaging |
| GMM | Genetically Modified Mosquito |
| GMM | Global Money Market |
| GMM | General Maintenance Mechanic (various organizations) |
| GMM | Graspop Metal Meeting (music festival, Belgium) |
| GMM | Garibaldi-Meucci Museum (New York, NY) |
| GMM | Grand Mesa Music (Grand Junction, CO) |
| GMM | Global Multimedia Mobility |
| GMM | Global Materials Management (various businesses) |
| GMM | Global Movement Management |
| GMM | Gospel Music Ministries (Alaska) |
| GMM | Gram Molecular Mass (chemistry) |
| GMM | Geometric Math Model |
| GMM | GCDB Measurement Management |
| GMM | General Management Meeting |
| GMM | GEC-Marconi Materials Technology |
| GMM | (USN Rating) Gunner's Mate (Missiles) |
| GMM | Gross Money Multiple (finance) |