| Acronym | Definition |
|---|
| ISPI➣International Society for Performance Improvement |
| ISPI➣International Society for Pest Information (Germany) |
| ISPI➣International Standard Party Identifier (media content identification system) |
| ISPI➣Institute for the Study of Privacy Issues (Canada; est. 1997) |
| ISPI➣International Strategy and Policy Institute (est. 1994; Chicago, IL) |
| ISPI➣Illinois State Psychiatric Institute (Chicago, IL) |
| ISPI➣Integrated Systems Processes and Infrastructure |