GBMC
| Acronym | Definition |
|---|---|
| GBMC | Greater Baltimore Medical Center |
| GBMC | Groupe-Brigade Mécanisé du Canada (French: Mechanized Brigade Group of Canada; Canada) |
| GBMC | Green Belt Motor Club (UK) |
| GBMC | Global Business and Management Consulting |
| GBMC | Golden Buffalo Men's Chorus (University of Colorado at Boulder) |
| GBMC | Global Bone Mineral Content |