| Acronym | Definition |
|---|
| GTSC➣Global Technical Support Centre |
| GTSC➣Gran Turismo Series Center (gaming) |
| GTSC➣General Thoracic Surgical Club |
| GTSC➣Governors Traffic Safety Committee (New York) |
| GTSC➣German Territorial Southern Command |
| GTSC➣Global Telecommunication Standardization Collaboration |
| GTSC➣Graduate Training and Support Centre (University of Leeds; UK) |