GRETA
| Acronym | Definition |
|---|---|
| GRETA | GRETA Regular Expression Template Archive (Microsoft) |
| GRETA | Generalized Resource Extraction Tool for Aggregate Data (University of Minnesota) |
| GRETA | Ground Radar Emitter for Training Aviators |
| GRETA | Groupement d'Etablissement Publics Locaux d'Enseignement (French: Local Public Education Institutions Group) |