SWS

SWS, SWs, or sWS my refer to:

Education

 * Sacramento Waldorf School, Pre-K-12 coeducational private school in Sacramento, California
 * School within a School, a democratic education program at Brookline High School

Machines

 * M21 Sniper Weapon System, a US Army sniper rifle
 * M24 Sniper Weapon System, a US Army sniper rifle
 * Schwere Wehrmachtschlepper German half-track vehicle deployed late into World War II
 * SWS (trolleybus), a hybrid trolleybus prototype

Technology

 * Scientific Workflow System, scientific application software that composes, executes, and manages workflows
 * Seawater scale, a measure of concentration of H+, HSO4+, and HF
 * Semantic Web service, a Web service that can be published, discovered, composed, and executed by Web applications
 * Sentient World Simulation, a project to be based on Synthetic Environment for Analysis and Simulations
 * Silly window syndrome, a TCP flow control problem in computer networks
 * Sine wave speech, a speech synthesis technique that replaces formants with pure tone whistles
 * Smart wearable system, an extension of the wearable computer

Other uses

 * Safe Water System, initiative by the US Centers for Disease Control and Prevention to improve water quality
 * Schweizerische Wagons- und Aufzügefabrik AG Schlieren-Zürich, a now defunct Swiss railway rolling stock manufacturer
 * Seann William Scott (b. 1976), US actor
 * Shaun White Snowboarding, a 2008 video game
 * Sleeping With Sirens, an American post-hardcore band
 * Slow-wave sleep, deep sleep
 * Social Weather Stations, a social research institution in the Philippines
 * Society of Wetland Scientists, a US non-profit organization
 * Southern Water Services, a private utility company responsible for public wastewater collection and treatment in South England
 * SouthWest Service, a Metra route to Manhattan, Illinois
 * Sozialwerke Pfarrer Sieber, a Swiss charity and relief organization founded by Pastor Ernst Sieber
 * Super World of Sports, a Japanese professional wrestling promotion
 * SWS, IATA airport code for Swansea Airport
 * SWs, listener missives that express appreciation for Sarah Kennedy's breakfast show on BBC Radio 2
 * An abbreviation for sallallahu 'alayhi wa sallam, the benediction for the Islamic prophet Muhammad (meaning Peace be upon him)