| Acronym | Definition |
|---|
| GEMA | Georgia Emergency Management Agency |
| GEMA | Global Engine Manufacturing Assembly |
| GEMA | Gesellschaft für Musikalische Aufführungs- und Mechanische Vervielfältigungsrechte (German musical copyright monitoring body) |
| GEMA | Global Engine Manufacturing Alliance (automotive engines jointly developed by DaimlerChrysler, Hyundai, and Mitsubishi) |
| GEMA | Groupement des Entreprises Mutuelles d'Assurances (French) |
| GEMA | Global Emergency Medicine Academy |
| GEMA | Global Emergency Medicine Archives (journal) |
| GEMA | Société Générale Maritime |
| GEMA | Generalized Expectation Maximization Algorithm |