WSW

WSW  may refer to:
 * West-southwest, a compass direction (one of the eight "half-winds")
 * Women who have sex with women

Media

 * Wall Street Week, a business show on the US Public Broadcasting Service (PBS)
 * War§ow, a video game
 * World Socialist Website, a news organization

Science

 * World Space Week, UN-declared space celebration held October 4–10 annually
 * WSW, the SAME code for a Winter Storm Warning

Transport

 * Wandsworth Common railway station, London, England, National Rail station code

Organizations

 * Western Sydney Wanderers FC, an Australian men's association football club
 * Western Sydney Wanderers FC (W-League), an Australian women's association football club
 * Wojskowa Służba Wewnętrzna, a former Polish military counterintelligence and military police service
 * Wo Shing Wo, a Triad gang
 * World Series Wrestling