GCMC
| 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 |