WSW may refer to:

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

Science West-southwest, a compass direction (one of the eight "half-winds") 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 (women), 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

Other uses Women who have sex with women