| Acronym | Definition |
|---|
| PSSC | Physical Science Study Committee |
| PSSC | Parallel Sysplex System Center |
| PSSC | Parent School Support Committee (Canada) |
| PSSC | Philippine Social Science Council |
| PSSC | Passenger Ship Safety Certificate |
| PSSC | Pacific Structural Steel Conference |
| PSSC | Public Service Satellite Consortium |
| PSSC | Pittsburgh Speed Skating Club (Pittsburgh, PA; also seen as PSC) |
| PSSC | Products and Solutions Support Center (IBM) |
| PSSC | Paper Street Soap Company (gaming guild) |
| PSSC | Preliminary System Security Concept |
| PSSC | Point Source Spectral Content |
| PSSC | Philippine Standard Commodity Classification |
| PSSC | Probabilistic Statement Sensitivity Coverage |
| PSSC | Principle Structures, Systems, and Components (US NRC) |