| Rank | Abbreviation | Meaning |
|---|
| ***** | PSIR | Post Sentence Investigation Report
| |
| *** | PSIR | Pressure State Impact Response
| |
| * | PSIR | Pre Sentence Investigation Report
| |
| * | PSIR | Political Science and International Relations
| |
| * | PSIR | project specific information requirements
| |
| * | PSIR | Prix Supérieur Interrégional
| |
| * | PSIR | Phase Sensitive Inversion Recovery
| |
| * | PSIR | Pre-Sentence Investigative Report
| |
| * | PSIR | Problem Solving Initiative Report
| |
| * | PSIR | Public Services Industry Review
| |
| * | PSIR | Public Sector Industrial Relations
| |
| * | PSIR | PSI RESOURCES, INC.
| |
| * | PSIR | Program on Studies in Religion
| |
| * | PSIR | partial saturation inversion recovery
| |
| * | PSIR | Passenger Supplemental Inflatable Restraint
| |
| * | PSIR | Passenger Side Inflatable Restraint
| |
| * | PSIR | Private Sector Industrial Relations
| |