| Abbreviation | Definition |
|---|---|
| PHDA | Physically Handicapped Direction Administrator |
| PHDH | Public Health Dental Hygienist |
| PHE | Peer Health Educator |
| PHI | Public Health Investigator |
| PHN | Public Health Nurse |
| PHNW | Public Holiday No Work |
| PHONEREPAIR | Phone is a something that man communication between two or more |
| PHR | Professional in Human Resources Certification |
| PHY | Physician |
| PI | Paranormal Investigator |
| PI | Physician Investigator |
| PI | Political Informant |
| PI | Pool Instructor |
| PI | Position Independent |
| PI | Primary Investigator |
| PI | Principle Investigator |
| PI | Private Investigator |
| PI | Problem Investigator |
| PI | Program Integrator |
| PI | Property Inspector |