| Acronym | Definition |
|---|
| EPCI | Établissement Public de Coopération Intercommunale (French: Public Establishment for Intermunicipal Cooperation) |
| EPCI | Engineering, Procurement, Construction, and Installation |
| EPCI | Enhanced Proliferation Control Initiative |
| EPCI | Evangelical Presbyterian Church of Ireland |
| EPCI | École de Propédeutique à la Connaissance de l'Inconscient (French psychoanalysis school) |
| EPCI | Electronic Payment Certification Institute |
| EPCI | EP Consultants, Incorporated (Callaway, FL) |
| EPCI | Export Promotion Center of Iran (est. 1965) |
| EPCI | Édouard Phelip Consultant Informatique (French computer consulting company) |