| Rank | Abbreviation | Meaning |
|---|
| ***** | PPIS | Process and Product Information System
| |
| ***** | PPIS | Personal and Professional Information Sheet
| |
| ***** | PPIS | Project Planning and Implementation System
| |
| ***** | PPIS | Proton-Pump Inhibitors
| |
| ***** | PPIS | Persatuan Pemudi Islam Singapura
| |
| **** | PPIS | Plant Protection and Inspection Service
| |
| **** | PPIS | Plant Protection and Instrumentation System
| |
| ** | PPIS | Poisonous Plant Information System
| |
| ** | PPIS | Physician Practice Information Survey
| |
| * | PPIS | Pretty Pictures of the Ice Storm
| |
| * | PPIS | Planning Policy and Interpretations Subcommittee
| |
| * | PPIS | Project Processing Information System
| |
| * | PPIS | Pollution Prevention in States
| |
| * | PPIS | Prime Power Interface Subsystem
| |
| * | PPIS | Protein-Protein Interactions
| |
| * | PPIS | professional piercing information systems
| |
| * | PPIS | Pesticide Product Information System
| |
| * | PPIS | Polyphosphoinositides
| |
| * | PPIS | Pollution Prevention Incentives to States
| |
| * | PPIS | Population Policies Information System
| |
| * | PPIS | Pollution Prevention Icentives for States
| |
| * | PPIS | Premium Pocket Instrument Set
| |
| * | PPIS | Perhimpunan Pelajar Indonesia Singapura
| |
| * | PPIS | Preservation Process Instructions
| |
| * | PPIS | Pollution Prevention Initiatives for States
| |