| Acronym | Definition |
|---|
| TGD | Three Gorges Dam (China) |
| TGD | Trzecia Godzina Dnia (Polish: Third Day; choir) |
| TGD | Trastorno Generalizado del Desarrollo (Spanish: autism information) |
| TGD | Technical Guidance Document |
| TGD | The God Delusion (book by Richard Dawkins) |
| TGD | Tetrahymena Genome Database |
| TGD | The Great Dragon |
| TGD | The Great Depression |
| TGD | Topological Geometrodynamics (theory) |
| TGD | The Grateful Dead (band) |
| TGD | Tangier Disease |
| TGD | Podgorica, Yugoslavia - Golubovci (Airport Code) |
| TGD | Theater Geospatial Database |
| TGD | Très Grandes Décisions (French: Very Big Decisions) |
| TGD | Turkische Gemeinde in Deutschland (Turkish Community in Germany) |
| TGD | Toper Game Development |
| TGD | Test Generation Directive |
| TGD | Telegeodynamics |
| TGD | Terrain Graphics Display |
| TGD | Türk Gastroenteroloji Dernegi |
| TGD | Thermo Glass Door |