| Abbreviation | Definition |
|---|---|
| PPA | Phil's Portable Amplifier |
| PPC | Photo Persistent Conductivity |
| PPDS | Point-to-Point Differential Signaling |
| PPE | Personal Protective Equipment |
| PPEC | Paulding Putnam Electric Cooperative |
| PPED | Personal Portable Electronic Device |
| PPG | Portable Pulse Generator |
| PPG | Programmable Pulse Generator |
| PPGA | Plastic Pin Grid Array |
| PPID | Process Program IDentification |
| PPM | Parts Per Million |
| PPM | Portable PixelMap image format |
| PPM | Pulse Period Modulation |
| PPM | Pulse Position Modulation |
| PPMS | Physical Properties Measurement System |
| PPMU | Pin Parametric Measurement Unit |
| PPO | PolyPhenylene Oxide |
| PPPL | Princeton Plasma Physics Laboratory |
| PPRAM | Parallel Processing Random Access Memory |
| PPREF | Process Program REFerence |