| Powell Point | Airport Code |
| Percentage Price Oscillator | Business |
| Power Purchase Organization | Business |
| Project Portfolio Office | Business |
| Pre-Placement Offer | Business |
| Polyphenolic Oxidase | Chemistry |
| Pupil Performance Objective | Community |
| People Protecting Otters | Community |
| Pension Payment Order | Community |
| Powerbuilder Power Object | Computing |
| Pre Processor Output | Computing |
| Polyphenylene Oxide | Electronics |
| Preprocessor Output File | File Type |
| Permanent Paranormal Object | General |
| Private Patrol Operator | General |
| Public Performances Only | General |
| Professional Provider Organization | General |
| Perfect Providers Organization | General |
| Preferred Provider Option | General |
| Please Pay Outlandishly | General |
| Prajenikta Partisaner Organizacije | General |
| Pure Plant Oil | General |
| Professional Photographers of Ohio | General |
| Public Policy Office | General |
| Preferred Provider Organizations | General |
| Participating Provider Option | General |
| Public Programs Office | General |
| PAWR Project Office | General |
| Procurement Policy Office | General |
| Parent Participation Organization | General |
| Prompt Payment Ontario | General |
| Proximal Policy Optimization | General |
| Philippine Philharmonic Orchestra | General |
| Professional Photographers of the Ozarks | General |
| Personal Protection Orders | General |
| Prefered Provider Organization | General |
| Parole and Probation Officer | General |
| Participating Provider Options | General |
| Personal Protection Officer | General |
| Post Production Options | General |
| Polestar Performance Optimization | General |
| Premium Pre Owned | General |
| Permit Parking Only | General |
| Parking Permit Online | General |
| Parking Patrol Officer | General |
| Pro Power Onboard | General |
| Personal Protection Order | Governmental |
| Prolific and other Priority Offenders | Governmental |
| Prolific Priority Offender | Governmental |
| Preferred Provider Organization | Healthcare |
| PANPOSH | Indian Railway Station |
| Preferred Participating Organization | Medical |
| Personal Post Office | Networking |
| Powell Point, Bahamas | Regional |
| Payload Projects Office | Space Science |
| Public Price Offering | Stock Exchange |
