| Acronym | Definition |
|---|
| GTCS➣General Teaching Council for Scotland (UK) |
| GTCS➣Generalized Tonic-Clonic Seizure |
| GTCS➣Global Technologies & Consultancy Services (various locations) |
| GTCS➣Ganesh Technical Consultancy Services (India) |
| GTCS➣Graduate Training Consultant Program (University of Michigan) |
| GTCS➣Georgia Tech Computer Store |
| GTCS➣Georgia Tech Consulting Services (Georgia Tech University) |
| GTCS➣Ground Tactical Communications Services |
| GTCS➣Gas Turbine Control System |
| GTCS➣Global Technologies and Control Solutions (Sintra, Portugal) |