WS

WS, Ws, or ws may refer to:

Businesses and organizations

 * Ware Shoals Railroad (reporting mark WS), South Carolina, United States
 * WestJet (IATA airline code WS)
 * Society of Writers to His Majesty's Signet, in post-nomial abbreviation
 * Williams Street, the production arm for Cartoon Network’s nighttime programming block, Adult Swim
 * Warm Showers, a non-profit hospitality exchange network for world cyclists.
 * Williams-Sonoma, Inc., American kitchenware and home furnishings retailer.
 * Wikisource, an online digital library of free-content textual sources on a wiki

Places

 * WS postcode area, West Midlands, UK
 * Samoa (ISO 3166-1 country code WS)
 * Winschoten railway station, the Netherlands, station code
 * Winston-Salem, North Carolina, United States

Science and technology

 * .ws, the Internet country code top-level domain for Samoa
 * WebSocket protocol prefix in a URI
 * Watt second (Ws) or Joule, a unit of energy
 * Web service, software system designed to support machine-to-machine interaction over the Web
 * Werner syndrome, premature aging
 * White striping, a condition in poultry where fat replaces muscle
 * Williams syndrome, a developmental disorder
 * WonderSwan, handheld game console

Sports

 * World Sailing, world governing body for the sport of sailing
 * The World Series, the annual championship series of Major League Baseball postseason
 * World Series (disambiguation)