| PPI | Pacific Printing Industries 
| Others |
| PPI | Pack Post Insurance
| Others |
| PPI | Pages Per Inch
| Others |
| PPI | Paired Pulse Inhibition
| Others |
| PPI | Pakistan Press International
| Others |
| PPI | Parallel Peripheral Interface
| Others |
| PPI | Parallel Processing Interface
| Others |
| PPI | Paranormal Private Investigator
| Others |
| PPI | Parse::Perl::Isolated
| Others |
| PPI | Partial Permanent Impairment
| Others |
| PPI | Participant Perception Indicator
| Others |
| PPI | Particles Per Inch
| Others |
| PPI | Partner Program Intelligence
| Others |
| PPI | Partnerhip for Policy Implementation
| Others |
| PPI | Parts Per Inch
| Others |
| PPI | Passive Plus Inc
| Others |
| PPI | Passive Proximity Immobilizer
| Others |
| PPI | Past Performance Information
| Others |
| PPI | Past President Immediate
| Others |
| PPI | Patient and Public Involvement
| Others |
| PPI | Patient Package Insert
| Others |
| PPI | Patient Public Involvement
| Others |
| PPI | Patient's Perspective of Illness
| Others |
| PPI | Pay Per Impression
| Others |
| PPI | Pay Per Incident
| Others |
| PPI | Pay Per Inclusion
| Others |
| PPI | Pay Per Install
| Others |
| PPI | Payment Processing Inc
| Others |
| PPI | Payment Protection Insurance
| Others |
| PPI | Pcs to Pcs Interference
| Others |
| PPI | Pea Protein Isolate
| Others |
| PPI | Peak Program Indicator
| Others |
| PPI | Pedagogical Psychological Information
| Others |
| PPI | Pennsylvania Psychiatric Institute
| Others |
| PPI | Peptidyl Prolyl Isomerase
| Others |
| PPI | Perceptive Pixel Inc
| Others |
| PPI | Performance Polymers Innovations
| Others |
| PPI | Peripheral Parallel Interface
| Others |
| PPI | Permanent Partial Impairment
| Others |
| PPI | Perserikatan Persuratkabaran Indonesia
| Others |
| PPI | Personal and Public Involvement
| Others |
| PPI | Personal Potential Index
| Others |
| PPI | Personal Priesthood Interview
| Others |
| PPI | Philosophy in the Public Interest
| Others |
| PPI | phosphoinositide
| Others |
| PPI | Picks per inch
| Others |
| PPI | Pirate Parties International
| Others |
| PPI | Pittsburgh Pastoral Institute
| Others |
| PPI | Pixel Per Inch
| Others |
| PPI | Pixels Per Inch
| Others |
| PPI | Pixles Per Inch
| Others |
| PPI | Plan Position Indicator
| Others |
| PPI | Planetary Plasma Interactions
| Others |
| PPI | Planned Product Improvement
| Others |
| PPI | Plastics Pipe Institute
| Others |
| PPI | Platinum Plans Insurance
| Others |
| PPI | Point-Point-Interface
| Others |
| PPI | Points Per Inch
| Others |
| PPI | Polymerase Preference Index
| Others |
| PPI | Portal Perfusion Index
| Others |
| PPI | Position Plan Indicator
| Others |
| PPI | Positive Peer Influence
| Others |
| PPI | Positive Performance Indicators
| Others |
| PPI | Postage Paid Impression
| Others |
| PPI | postpartum interval
| Others |
| PPI | Poverty Probability Index
| Others |
| PPI | Pre Pleading Investigation
| Others |
| PPI | Pre Primary Impairments
| Others |
| PPI | Pre Purchase Inspection
| Others |
| PPI | Pre-Paid Instruments
| Others |
| PPI | Pre-Purchase Inspection
| Others |
| PPI | Precise Pixel Interpolation
| Others |
| PPI | Precision Performance Individuality
| Others |
| PPI | Precision Power Instruments
| Others |
| PPI | Precision Preparation Inc
| Others |
| PPI | Premier Performance Interiors
| Others |
| PPI | Premiere Products Inc
| Others |
| PPI | Premium Pension Institution
| Others |
| PPI | Premiums Promotions and Imports
| Others |
| PPI | preproinsulin
| Others |
| PPI | Prepulse Inhibition
| Others |
| PPI | Pressure Products Industries
| Others |
| PPI | Pretty Poor Interface
| Others |
| PPI | Primate Programming Inc
| Others |
| PPI | Prime Project International
| Others |
| PPI | Prince of Persia Interface
| Others |
| PPI | Printed Postage Impression (mail)
| Others |
| PPI | Private Participation in Infrastructure
| Others |
| PPI | Private Personal Information
| Others |
| PPI | Proactive Preservation Initiative
| Others |
| PPI | Process Performance Indicator
| Others |
| PPI | Producer Pacification Indicator
| Others |
| PPI | Producer Price Index
| Others |
| PPI | Producer Price Indexes
| Others |
| PPI | Production People Inc
| Others |
| PPI | Professional Photographers of Iowa
| Others |
| PPI | Professional Publications Inc
| Others |
| PPI | Program Planning and Integration
| Others |
| PPI | Program to Program Interface
| Others |
| PPI | Programmable Peripheral Interface
| Others |
| PPI | Programme Potentiellement Indesirable
| Others |
| PPI | Progress and Performance Index
| Others |
| PPI | Progressive Policy
| Others |
| PPI | Progressive Policy Institute
| Others |
| PPI | Project Performance International
| Others |
| PPI | Protected Personal Information
| Others |
| PPI | Protein-Protein Interaction
| Others |
| PPI | Protein-Pump Inhibitor
| Others |
| PPI | Proton Pump Inhibitior
| Others |
| PPI | Proton Pump Inhibitor
| Others |
| PPI | Proton Pump Inhibitors
| Others |
| PPI | Proton-Pump Inhibitor
| Others |
| PPI | Psychopathic Personality Inventory
| Others |
| PPI | Psychophysiological Interaction
| Others |
| PPI | Public Policy Institute
| Others |
| PPI | Pulp and Paper Industry
| Others |
| PPI | Pulp and Paper International
| Others |
| PPI | Pulp Paper International
| Others |
| PPI | Pulse Per Inch
| Others |
| PPI | Pulse Position Indicator
| Others |
| PPI | Purified Porcine Insulin
| Others |