| PPO | Parent Participation Organization 
| Others |
| PPO | Parking Patrol Officer
| Others |
| PPO | Parking Permit Online
| Others |
| PPO | Parole and Probation Officer
| Others |
| PPO | Participating Provider Option
| Others |
| PPO | Participating Provider Options
| Others |
| PPO | PAWR Project Office
| Others |
| PPO | Payload Projects Office
| Others |
| PPO | Pension Payment Order
| Others |
| PPO | People Protecting Otters
| Others |
| PPO | Percentage Price Oscillator
| Others |
| PPO | Perfect Providers Organization
| Others |
| PPO | Permanent Paranormal Object
| Others |
| PPO | Permit Parking Only
| Others |
| PPO | Personal Post Office
| Others |
| PPO | Personal Protection Officer
| Others |
| PPO | Personal Protection Order
| Others |
| PPO | Personal Protection Orders
| Others |
| PPO | Philippine Philharmonic Orchestra
| Others |
| PPO | Please Pay Outlandishly
| Others |
| PPO | Polestar Performance Optimization
| Others |
| PPO | PolyPhenolic Oxidase
| Others |
| PPO | PolyPhenylene Oxide
| Others |
| PPO | Post Production Options
| Others |
| PPO | Powell Point, Bahamas
| Others |
| PPO | Power Purchase Organization
| Others |
| PPO | Powerbuilder Power Object
| Others |
| PPO | Prajenikta Partisaner Organizacije
| Others |
| PPO | Pre Processor Output
| Others |
| PPO | Pre-Placement Offer
| Others |
| PPO | Prefered Provider Organization
| Others |
| PPO | Preferred Participating Organization
| Others |
| PPO | Preferred Provider Option
| Others |
| PPO | Preferred Provider Organization
| Others |
| PPO | Preferred Provider Organizations
| Others |
| PPO | Premium Pre Owned
| Others |
| PPO | PreProcessor output file
| Others |
| PPO | Private Patrol Operator
| Others |
| PPO | Pro Power Onboard
| Others |
| PPO | Procurement Policy Office
| Others |
| PPO | Professional Photographers of Ohio
| Others |
| PPO | Professional Photographers of the Ozarks
| Others |
| PPO | Professional Provider Organization
| Others |
| PPO | Project Portfolio Office
| Others |
| PPO | Prolific and other Priority Offenders
| Others |
| PPO | Prolific Priority Offender
| Others |
| PPO | Prompt Payment Ontario
| Others |
| PPO | Proximal Policy Optimization
| Others |
| PPO | Public Performances Only
| Others |
| PPO | Public Policy Office
| Others |
| PPO | Public Price Offering
| Others |
| PPO | Public Programs Office
| Others |
| PPO | Pupil Performance Objective
| Others |
| PPO | Pure Plant Oil
| Others |