GSW may refer to:
Geological Society of Washington Georgia Southwestern State University, in the United States God Street Wine, a New York City-based rock band Golden State Warriors, an American professional basketball team based in San Francisco GSW Immobilien, a company in Berlin GSW Limited, Canadian appliance maker formed by the merger of Beatty Brothers Limited and General Steel Wares Gunshot wound MIT Global Startup Workshop, an international entrepreneurship conference.
Aviation Greater Southwest International Airport, in Fort Worth, Texas, now closed HolidayJet, a defunct Swiss airline Sky Wings Airlines, a defunct Greek airline
Language Alsatian dialect Swiss German dialect