| Acronym | Definition |
|---|
| SWS | Slow Wave Sleep |
| SWS | Sociologists for Women in Society (Kingston, RI) |
| SWS | Safety Warning System |
| SWS | Sturge-Weber Syndrome (birthmark) |
| SWS | Short Wavelength Spectrometer |
| SWS | Stadtwerke Speyer GmbH (Germany) |
| SWS | State Weather Summary |
| SWS | Sniper Weapon System (US Army) |
| SWS | Social Weather Station |
| SWS | Silly Window Syndrome (RFC 813) |
| SWS | Space Warning Squadron |
| SWS | Social Work Services (US Army) |
| SWS | Student Web Service |
| SWS | Safe Water System |
| SWS | Seann William Scott (actor) |
| SWS | Sentient World Simulation |
| SWS | Sour Water Stripper (petrochemical) |
| SWS | Salt Water Sportsman (magazine) |
| SWS | Strategic Weapons System |
| SWS | Software Specification |
| SWS | Sun Web Server |
| SWS | Stuve-Wiedemann Syndrome |
| SWS | Slow Wave Structure |
| SWS | Southern Women's Show |
| SWS | Special Workplace Statistics (UK) |
| SWS | Solid Waste Section |
| SWS | Scientific Workstation |
| SWS | Sacramento Waldorf School (Fair Oaks, CA) |
| SWS | Service Water System |
| SWS | Soil and Water Sciences |
| SWS | Search Web Service |
| SWS | Semantic Web School |
| SWS | Smokin' with Superman (band) |
| SWS | Saturn Workshop |
| SWS | Super World of Sports (wrestling circuit; Japan) |
| SWS | South Waziristan Scouts (Pakistan) |
| SWS | Standard Workstation |
| SWS | Sour Water System |
| SWS | Sub-Woofer System |
| SWS | Sliding-Window System |
| SWS | Security Web Service |
| SWS | Salt Water System |
| SWS | Sun Water Systems, Inc (Fort Worth, TX) |
| SWS | SONET WAN Switch (Cisco) |
| SWS | Single Wound Sheet (plastics industry) |
| SwS | Sneaky Weasel Studios (website) |
| SWS | Submarine Warfare System |
| SWS | Strategic Warning Staff |
| SWS | Solar Wind Scintillation |
| SWS | Small Window Syndrome (wireless communications) |
| SWS | Sour Water Service |
| SWS | Sliding Window Switch |
| SWS | Submarine Weapons System |
| SWS | Standard Work Second |
| SWS | Surface Warfare Supervisor (US Navy) |
| SWS | Surface-Wave Suppression |
| SWS | Saltwater Sailing |
| SWS | Smart Workstation |
| SWS | Special Weapons System |
| SWS | Society for Wilderness Stewardship |
| SWS | Strafford Wind Symphony (Rochester, NH) |
| SWS | Stormwind Stockades (gaming, World of Warcraft) |
| SWS | Sustainable West Seattle (forum) |
| SWS | Shear Wave Splitting |
| SWS | Secure Website |
| SWS | Southern Wine and Spirits (Florida) |
| SWS | Social Work Society |
| SWS | Stan Winston Studio (film) |
| SWS | School of World Studies (Virginia Commonwealth University) |