ISU

ISU may refer to:

Schools

United States

• Idaho State University, Pocatello, Idaho
• Illinois State University, Normal, Illinois
• Illinois State University (Springfield, Illinois)
• Indiana State University, Terre Haute, Indiana
• Iowa State University, Ames, Iowa

Elsewhere

• I-Shou University, Kaohsiung, Taiwan
• Ifugao State University, in the Philippines
• Ilia State University, in Tbilisi, Georgia
• Imo State University
• Ingush State University, in Magas, Republic of Ingushetia
• International School of Uganda, Kampala, Uganda
• International School of Ulaanbaatar, Mongolia
• International Solomon University, in Ukraine
• International Space University, Illkirch-Graffenstaden, France
• Irkutsk State University, in Eastern Siberia

Organizations

• ISU (trade union), British trade union formerly known as the Immigration Service Union
• Integrated Security Unit, in Canada
• Internal Security Unit, the counter-intelligence unit of the Provisional Irish Republican Army (IRA)
• International Seamen's Union
• International Skating Union

Other

• Italian Service Units, Italian prisoner of war army units that served on the Allied side during World War II
• ISU (singer)
• Isu language (Bantu), also called Suwu or Subu, a Bantu language of Cameroon
• Isu language, a Grassfields Bantu language of Cameroon
• Isu, Nigeria, a local government area of Imo State
• Isu people, an ethnic group in Nigeria
• Isu station, on the Seoul Metropolitan Subway
• ISU-152, ISU-122, Soviet self-propelled guns
• SAP IS-U, Industry Specific Solution for Utilities
• International System of Units, the SI system
• ISU, the IATA airport code for Sulaimaniyah International Airport, Iraq