| Abbreviation | Definition |
|---|---|
| PFC | Press For Change |
| PFTW | Press Fire to Win |
| PGD | Pacific Green Divers |
| PGN | Philadelphia Gay News |
| PGW | Publishers Group West |
| PH | Permanent Hiatus |
| PHM | Pacific Historical Maps |
| PHNN | Parrot Head News Network |
| PHPL | Pakistan Herald Publications Limited (Karachi, Pakistan) |
| PIB | Press Information Bureau |
| PIBA | Press in Bottle Adaptors |
| PID | Press Information Department |
| PIFs | Public Information Films |
| PINA | Pacific Islands News Agency |
| PIO | Press and Information Office |
| PITN | Prophecy In The News |
| PITN | Purdue In The News |
| PIWDW | Press Institute for Women in the Developing World (Alameda, CA) |
| PIXEL | Picture Element |
| PLA | Programmable Logic Array |