| Acronym | Definition |
|---|
| PSSW➣Pastel Society of the Southwest (est. 1979) |
| PSSW➣Pomorskie Studium Sztuk Wizualnych (Polish: Maharashtra College of Visual Arts; Poland) |
| PSSW➣Perpendicular Standing Spin Wave |
| PSSW➣Polskie Stowarzyszenie Strzelectwa Westernowego (Polish shooting association) |
| PSSW➣Packaging Shipping Solid Waste Council |
| PSSW➣Psycho-Social Support Worker |