| Acronym | Definition |
|---|
| EFPI | Extrinsic Fabry-Perot Interferometric |
| EFPI | Entreprise de Faux Plafonds et d'Isolation (French: False Ceilings Business and Insulation) |
| EFPI | Equation-Free Projective Integration |
| EFPI | Education for Practice Institute (Charles Sturt University; Australia) |
| EFPI | European Federation of Pharmaceutical Industries and Associations |
| EFPI | Entreprise Formation Protection Incendie (French: Fire Safety Training Company) |
| EFPI | Expected Future Profitability of Investment |
| EFPI | Estonian Foreign Policy Institute (est. 2000) |