ISU

• I-Shou University
• ISU (singer)
• ISU (trade union)
• ISU-122
• ISU-152
• Idaho State University
• Ifugao State University
• Ilia State University
• Illinois State University
• Illinois State University (Springfield, Illinois)
• Imo State University
• Indiana State University
• Ingush State University
• Integrated Security Unit
• Internal Security Unit
• International School of Uganda
• International School of Ulaanbaatar
• International Seamen's Union
• International Skating Union
• International Solomon University
• International Space University
• International System of Units
• Iowa State University
• Irkutsk State University
• Isu language
• Isu language (Bantu)
• Isu people
• Isu station
• Isu, Nigeria
• Italian Service Units
• SAP IS-U
• Sulaimaniyah International Airport