ESPI
| Acronym | Definition |
|---|---|
| ESPI | European Space Policy Institute |
| ESPI | Electronic Speckle Pattern Interferometry |
| ESPI | Environmental Science: Processes & Impacts (international journal) |
| ESPI | Ecole Supérieure des Professions Immobilières (Paris) |
| ESPI | Elective Services Performance Indicator (health care) |
| ESPI | European Software Process Improvement |
| ESPI | Electronic Space Products International (est. 1950; Ashland, OR) |
| ESPI | Energy Services Providers, Inc. (Pittsfield, MA) |