| Acronym | Definition |
|---|
| GCMC➣Graduate Career Management Center (New York) |
| GCMC➣Grand Canonical Monte Carlo |
| GCMC➣Greensboro College Middle College (Greensboro, NC) |
| GCMC➣Government Contract Management Conference |
| GCMC➣General Conference Mennonite Church |
| GCMC➣The George C. Marshall European Center for Security Studies |
| GCMC➣le Groupe de Combat En Milieu Clos (French: Close Quarters Combat Group; French Navy's maritime counter-terrorism group) |
| GCMC➣Grand Cape Mount County (Liberia) |
| GCMC➣Generalized Constant Modulus Criteria |