GSA may refer to:

Commerce Citroën GSA, a French automobile GameSpy Arcade, a utility for use with network computer games General sales agent, an airline sales representative Global mobile Suppliers Association, a not-for-profit industry organisation representing companies across the worldwide mobile ecosystem Google Search Appliance, a device for document indexing Global Semiconductor Alliance, a semiconductor industry trade group Global Sourcing Association, a trade association in the United Kingdom Gordon Stanfield Animation, a Canadian animation studio

Education Gay–straight alliance, a North American student organization German Studies Association, an organization of scholars of Germany, Austria, and Switzerland Girls' Schools Association, in the United Kingdom Graduate student assistant Graduate student association Green Schools Alliance, in the United States

Schools Gaiety School of Acting, in Dublin, Ireland German School of Athens, in Greece George Stevens Academy, a private school in Maine, United States Gitam School of Architecture, at Gitam University, in Visakhapatnam, India Glasgow School of Art, in Scotland Governor's School for the Arts (Kentucky), in Danville, Kentucky, United States Guildford School of Acting, in England Guyana School of Agriculture

Government European GNSS Agency, an EU agency concerned with navigation satellites General Services Administration, a United States federal agency that supports other US agencies Ghana Standards Authority Global Arrangement on Sustainable Steel and Aluminum, a proposed trade agreement between the United States and European Union Groupement Spécial Autonome, now the Army Special Forces Brigade, French Army special forces command

Science Genetic sexual attraction Genetics Society of America General somatic afferent fibers Geological Society of America Geological Society of Australia Gerontological Society of America GNAS complex locus, a protein

Other uses Gaudineer Scenic Area, in West Virginia, United States Gaye Su Akyol, Turkish singer, painter and anthropologist Girl Scouts of America, defunct Global Storage Architecture, a distributed file system Goan Sports Association, in Mumbai, India Long Pasia Airport, in Malaysia General Service Assistant, One of the positions in the Hospital Authority