GSU may refer to:
Universities Galatasaray University, in Istanbul, Turkey Gavar State University, in Armenia Georgia Southern University, in Statesboro, Georgia, United States Georgia State University, in Atlanta, Georgia, United States Gombe State University, in Nigeria Governors State University, in University Park, Illinois, United States Grambling State University, in Grambling, Louisiana, United States Guimaras State University, in Buenavista, Guimaras, Philippines Gulistan State University, in Gulistan, Uzbekistan
Other uses Azaza Airport, serving Gedaref, Sudan Gang Suppression Unit, a special unit of the Belize Police Department General Service Unit, a Kenyan paramilitary special forces unit. Genealogical Society of Utah Generator step-up transformer Geographically Separate Unit, in the United States military George Sherman Union, a building at Boston University Goldsmiths Students' Union, University of London Greater Sudbury Utilities, a Canadian power utility