| Abbreviation | Definition |
|---|---|
| PRAT | Pharmacology Research Associate Training |
| PRB | Philosophy Research Base |
| PRC | Packaging Research Center |
| PRC | Petroleum Research Center |
| PRC | Population Research Center |
| PRC | Professional Referral Committee |
| PRCY | Pre-Radiology Clinical Year |
| PREP | Post Registration Education Practice |
| PREP | Preview Registration and Environment Program (University of Louisiana at Monroe) |
| PREQ | Prerequisite |
| PRE-REQ | Pre- Requisite |
| PRI | Pacific Research Institute |
| PRI | Paleontological Research Institution |
| PRI | Population Research Institute |
| PRIDE | Personal Responsibility Includes the Dorm Environment |
| PRIO | Peace Research Institute of Oslo |
| PRISM | Performance and Registration Information System Management |
| PRK | Professional Research and Knowledge |
| PROBE | Personal Research On Basically Everything |
| PROBE | Power Research Organization for Basic Energy |