GRATIS
| Acronym | Definition |
|---|---|
| GRATIS | Ghana Regional Appropriate Technology Industrial Service (est. 1987; Tema, Ghana) |
| GRATIS | Georgia Registration and Title Information System (motor vehicle information database; Georgia Department of Revenue; Atlanta, GA) |
| GRATIS | Gamma-Ray Arcminute Telescope Imaging System (balloon experiment; US NASA) |
| GRATIS | Ghana Regional Appropriate Technology Industrial Research |