| Acronym | Definition |
|---|
| GSMC➣Good Shepherd Medical Center (Longview, TX) |
| GSMC➣Great Smoky Mountain Council (Knoxville, Tennessee boy scouts) |
| GSMC➣Global System for Mobile Communication |
| GSMC➣Great Southern Motor Cargo Inc. (New Orleans, LA) |
| GSMC➣Geospatial Standards Management Committee |
| GSMC➣Gator Sport Management Club (Gainesville, FL; est. 2005) |
| GSMC➣Ghana State Mining Corporation |
| GSMC➣Gulf Shore Mustang Club (automobile club; Florida) |
| GSMC➣Gunslingers Motorcycle Club (various locations) |
| GSMC➣Gulf States Mennonite Conference |