GSU

• 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
• Gulistan State University, in Gulistan, Uzbekistan

• 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

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