| Acronym | Definition |
|---|
| GBM | Isle of Man (International Auto Identification) |
| GBM | Glioblastoma Multiforme |
| GBM | Glomerular Basement Membrane |
| GBM | Gay and Bisexual Men |
| GBM | Geometric Brownian Motion (mathematical finance) |
| GBM | Genie Backup Manager (software) |
| GBM | Génie Biomédical (French: Biomedical Engineering) |
| GBM | Game Boy Micro (game console) |
| GBM | Groupe Banque Mondiale (French: World Bank Group) |
| GBM | Guerre Blindés & Matériel (French: Armoured Warfare and Equipment) |
| GBM | Green Belt Movement |
| GBM | Global Banking and Markets |
| GBM | General Business Meeting (various organizations) |
| GBM | Gulf Business Machines (est. 1990) |
| GBM | Gay Black Male |
| GBM | Global Brand Manager |
| GBM | Grand Bend Motorplex |
| GBM | Ginger Bread Man |
| GBM | Gotham Baseball Magazine (est. 2005; Gotham Sports Media) |
| GBM | Global Business Model |
| GBM | Green Bay Metro (Wisconsin) |
| GBM | Gaussian Beam Model |
| GBM | Global Battle Manager |
| GBM | Group Billing Master (insurance) |
| GBM | Grupo Bioquímico de Guatemala SA (Spanish) |
| GBM | Geosphere-Biosphere Model |
| GBM | Global Business Market |
| GBM | Global Business Machines |
| GBM | GLAST (Gamma-Ray Large Area Space Telescope) Burst Monitor (NASA) |