WSL may refer to:
Computing Wide-spectrum language, a kind of programming language Windows Subsystem for Linux, a part of Microsoft Windows 10 and 11 which allows the installation of Linux distributions
Organisations Swiss Federal Institute for Forest, Snow and Landscape Research (Eidgenössische Forschungsanstalt für Wald, Schnee und Landschaft, WSL) White Star Line, a shipping company, owner of the RMS Titanic Workers' Socialist League, a UK Trotskyist party
Sport Women's Super League, an English professional league for women's association football clubs RFL Women's Super League , the top-level women's rugby league league in England Women's Super League (basketball), Ireland World Series Lights, a motor racing competition World Surf League, a global professional competitive surfing league founded in 1976 Wrestling Superstars Live, a defunct wrestling promotion
Other uses Weatherscan Local, the former name of 24-hour weather channel Weatherscan Woluwe-Saint-Lambert, a district of Brussels