ISU may refer to:

  • International System of Unit
  • ISU-152, ISU-122, Soviet self-propelled guns
  • Integrated Security Unit
  • International Skating Union
  • International Seamen's Union
  • International Stereoscopic Union
  • Independent Study Unit
  • Information State Update - a common approach to Dialogue system management.
  • Industry Specific Solution for Utilities, an SAP solution
  • ISU, a Union for the Border Agency (formerly called the Immigration Service Union), a union for immigration officers in the UK Border Agency
  • ISU, the IATA airport code for Sulaimaniyah International Airport, Iraq
  • Isu Station on the Seoul Metropolitan Subway
  • Isu, Nigeria, a local government area of Imo State
  • Isu language, a Grassfields Bantu language of Cameroon
  • Isu language (Bantu), also called Suwu or Subu, a Bantu language of Cameroon
  • Isu people, an ethnic group in Nigeria
  • Isu, the yoruba word for Yam
  • Isu, Cameroon, a town


  • Idaho State University, Pocatello, Idaho
  • Illinois State University, Normal, Illinois
  • Indiana State University, Terre Haute, Indiana
  • International Space University, Illkirch-Graffenstaden, France
  • Iowa State University, Ames, Iowa


  • International School of Ulaanbaatar, Mongolia

Student Union of India:

  • Indian Student Union, Jharkhand, India