| Acronym | Definition |
|---|
| GTD | Getting Things Done |
| GTD | Guaranteed |
| GTD | Grand Touring Diesel |
| GTD | Gestational Trophoblastic Disease |
| GTD | Geometrical Theory of Diffraction |
| GTD | Generic Transparency Descriptor |
| GTD | Garantie de Taux de Disponibilité (Franch: Guaranteed Rate Availability) |
| GTD | Genotype Diet |
| GTD | Get Them Draws |
| GTD | Gonadotropin Deficiency |
| GTD | Game Time Decision |
| GTD | Global Trade Directory (database) |
| GTD | Global Tone Detection |
| GTD | Good Till Day (stock market) |
| GTD | Galactic Terran Destroyer (game) |
| GTD | Gran Turismo Diesel (Volkswagen auto model) |
| GTD | Game Theory Discussion |
| GTD | Geothermal Technology Division |
| GTD | Greatest Temperature Difference |
| GTD | Global Tracking Device |
| GTD | Gun Turret Drive Electronics (Canadian, Australian and New Zealand Armies) |
| GTD | Generalized Tamm-Dancoff Approximation |
| GTD | Genetically Transmitted Disease |