GTTC
| Acronym | Definition |
|---|---|
| GTTC | Geoscience Technology Training Center (various locations) |
| GTTC | Goodfellow Technical Training Center |
| GTTC | Ginseng and Tang-Kuei Ten Combination |
| GTTC | Grahamstown Teachers Training College (South Africa) |
| GTTC | Geospatial Technologies Training Center (University of New Hampshire) |
| GTTC | Global Trade and Technology Center (New York, NY) |
| GTTC | Gigabit to the Customer (broadband service) |
| GTTC | Government Toolroom and Training Center (Karnataka) |