| Acronym | Definition |
|---|
| GEPI➣Galaxies, Etoiles, Physique et Instrumentation (French: Galaxies, Stars, Physics and Instrumentation; research laboratory; France) |
| GEPI➣Genetically Engineered Peptides for Inorganics (biomimetics) |
| GEPI➣Groupement des Entrepreneurs de Peinture Industrielle (French: Industrial Painting Entrepreneurs Group; est. 1953) |
| GEPI➣Georgia Environmental Policy Institute (Athens, GA) |
| GEPI➣Gyratory Elasto-Plastic Index (materials) |
| GEPI➣Groupement de l'Exercice Professionnel des Infirmières |