| Term | Full Form | Category |
|---|---|---|
| GSMC | Gas Turbine System Technician (mechanical) Chief Petty Officer | Others |
| GSMC | Ghana State Mining Corporation | Others |
| GSMC | Global Service Management Center | Others |
| GSMC | Grace Semiconductor Manufacturing Company | Others |
| GSMC | Grace Semiconductor Manufacturing Corporation | Others |
| GSMC | Gracelyn Stress Management Center | Others |
| GSMC | Grassroots Science Museums Collaborative | Others |
| GSMC | Great Smoky Mountain Chapter | Others |
| GSMC | Grisha Smuk Mike And Cherviak | Others |
| GSMC | Gulf Shore Mustang Club | Others |