| Acronym | Definition |
|---|
| GCSC | Gulf Coast State College (Florida) |
| GCSC | Graduate Centre for the Study of Culture (Giessen, Germany) |
| GCSC | International Graduate Centre for the Study of Culture |
| GCSC | Gulf Coast Safety Council (various locations) |
| GCSC | Great Canadian Shoreline Cleanup (Canada) |
| GCSC | Glasgow City Social Club (UK) |
| GCSC | Gulf Coast Sailing Club (Hamilton Harbor Yacht Club; Naples, FL) |
| GCSC | Global Client Support Center (AT&T) |
| GCSC | Gloucester City Swimming Club (UK) |
| GCSC | Georgia Christian Student Center (University of Georgia; Athens, GA) |
| GCSC | Greencastle Community School Corporation (Greencastle, IN) |
| GCSC | Greater Columbus Sighthound Coursers (Ohio) |
| GCSC | Global Centre for Securing Cyberspace (Calgary, AB, Canada) |
| GCSC | Gladwin City Sports Complex (Gladwin, Michigan) |
| GCSC | Greenfield Central School Corporation (Indiana) |