| Abbreviation | Definition |
|---|---|
| PRO | Privilege, Responsibility, and Opportunity |
| PRO | Professional |
| PRO | Professional Rental Owner |
| PRO | Public Relations Officers |
| Pro/Engineer | Professional Engineer |
| PROE | Pro Engineer |
| PROE | Pro/ ENGINEER |
| PROF | Professional |
| PROM | Professionals Rated Organization Member |
| PROSPECTS | Personnel Resource Online Search For Permanent Employees Contractors Or Temporary Staff |
| PRP | Pre Retirement Provision |
| PRQ | Personal Resource Questionnaire |
| PRS | Professional Referral Source |
| PRS | Prosthetic Research Specialist |
| PRSI | Pay Related Social Insurance |
| PS | Performance Spectrum |
| PS | Police Sergeant |
| PS | Political Skills |
| PS | Private Secretary |
| PSA | Player Service Agent |