| Acronym | Definition |
|---|
| PSW | Personal Support Worker (Canada) |
| PSW | Pacific Southwest (various organizations) |
| PSW | Post Study Work (immigration status) |
| PSW | Program Status Word |
| PSW | Plastic Solid Waste (recycling) |
| PSW | Password |
| PSW | Psychiatric Social Worker |
| PSW | Provincially Significant Wetland (Canada) |
| PSW | Processor Status Word |
| PSW | Philadelphia Suburban Water (Philadelphia, PA) |
| PSW | Public Service Week (various locations) |
| PSW | Pharmacy Society of Wisconsin |
| PSW | Pumpspeicherkraftwerk (German: Pumped Storage Power Plant) |
| PSW | Protected Service Water (energy plants) |
| PSW | Persistent State World (MMORPGs) |
| PSW | Position Switching (astronomical interferometry) |
| PSW | Parts Submission Warrant |
| PSW | Positive Sharp Wave |
| PSW | Pipe Socket Weld (construction) |
| PSW | Pump, Sealant Water |
| PSW | Plan Sponsor Workstation (investments) |
| PSW | Peninsula Symphonic Winds (Palos Verdes Peninsula, CA) |
| PSW | People Skills Workshop |
| PSW | Peachtree Symphonic Winds (Atlanta, GA) |
| PSW | Percentage of Share of Wealth |
| PSW | Parallel-coupled Single-defect Waveguide |
| PSW | Part Supply Warranty |
| PSW | Proposal Scoring Worksheet |
| PSW | Performance Statement of Work (production management) |