| Acronym | Definition |
|---|
| GCCS | Global Command and Control System (US DoD) |
| GCCS | Global Command and Control Systems |
| GCCS | Global Command and Communications System |
| GCCS | Grants-Cibola County Schools (Grants, NM) |
| GCCS | Gas Collection and Control System (landfills) |
| GCCS | Georgia Center for Cancer Statistics |
| GCCS | Global Command Control Station |
| GCCS | Generic Call Control Service |
| GCCS | Global Combat Control System |
| GCCS | Glasgow Centre for the Child & Society |
| GCCS | Gloucester County Christian School |
| GCCS | Grinnell College Computer Services (Iowa) |
| GCCS | Global Communication & Control System |
| GCCS | Gliding Club Computer System |
| GCCS | Government Code & Cipher School (UK Foreign Office) |
| GCCS | Genesee County Courier Service |
| GCCS | Governor's Commission on Certainty in Sentencing (Georgia) |
| GCCS | Global Climate Change and Society |
| GCCS | Geneva Convention on the Continental Shelf |