| Acronym | Definition |
|---|
| PWS | Performance Work Statement |
| PWS | Public Water System |
| PWS | Password Stealer |
| PWS | Personal Web Server |
| PWS | Public Water Supply |
| PWS | Primary Weapons Systems (Boise, ID) |
| PWS | Power Supply (Pirelli) |
| PWS | Prader-Willi Syndrome |
| PWS | Personal Weather Station |
| PWS | Prince William Sound (Alaska) |
| PWS | Playing with Sound (record label) |
| PWS | Public Warning System (civil defense; various locations) |
| PWS | Port Wine Stain (birthmark) |
| PWS | Private Water Supply |
| PWS | Personal Workstation |
| PWS | Programmable Workstation |
| PWS | Portable Workstation |
| PWS | Premium Wireless Services |
| PWS | Pico Web Server |
| PWS | Peer Web Services |
| PWS | Payments for Watershed Services (conservation program) |
| PWS | Person Who Stutters |
| PWS | Professional Wetland Scientist |
| PWS | Potable Water System |
| PWS | Priority Worldwide Services (logistics company) |
| PWS | Peer Web Server |
| PWS | Professional Workstation (Computer) |
| PWS | Public Works Standards (various locations) |
| PWS | Public Water Source |
| PWS | Proximity Warning System |
| PWS | Predictive Windshear |
| PWS | Planning Watershed |
| PWS | Penrith Whitewater Stadium (Australia) |
| PWS | Private Wire Service |
| PWS | Peer Web Service |
| PWS | Public Weather Service |
| PWS | Pasadena Waldorf School (Altadena, CA) |
| PWS | Purify Weird Soul (Valkyrie Profile PlayStation/PSPortable game) |
| PWS | Power Windows & Siding, Inc (Brookhaven, PA) |
| PWS | Plane Wave Spectrum |
| PWS | Piecewise Sinusoidal |
| PWS | Portable Work Station |
| PWS | Personal Work Station |
| PWS | Pacific Water Shrew (animal species) |
| PWS | Postwurfsendung (Geman direct/bulk mail) |
| PWS | Partner Web Site |
| PWS | Part Winding Starting |
| PWS | Palestine Wildlife Society |
| PWS | Project Work Statement |
| PWS | Planning Workstation (Bellcore) |
| PWS | Programmer Work Station |
| PWS | Pricing Work Statement |
| PWS | Person with Stutter |
| PWS | Petrified Wood Society |
| PWS | Parallel Working System |
| PWS | Preliminary Work Statement |
| PWS | Private Wire System |
| PWS | Proto-West Sudanic |
| PWS | Phoenix Weapon System |
| PWS | Psychological Warfare Society |
| PWS | Predicted Wave Signaling |
| PWS | Present Water Sensor (US Department of Energy) |
| PWS | Petersburg Workshop on Simulation |
| PWS | Psychological Warfare Service |
| PWS | Process Water Sewer |
| PWS | Program Work Statement |
| PWS | Primary Working Standard |
| PWS | Portable Welding Service (various locations) |
| PWS | Phalanx Weapon System |