I
- ID cards
- Identity Standards
- Industrial and Manufacturing Systems Engineering
- Informatics Institute
- Informatics Research Core
- Informatics, Health Management and
- Information science
- Information Science and Learning Technologies, School of
- Information Technology Program (Engineering)
- Information Technology, Division of (DoIT)
- Institute for Korean Studies
- Institute of Public Policy
- Institute of Real Estate and Capital Markets, Smith
- Institutional Equity, Office of
- Institutional Research and Quality Improvement
- Institutional Review Board (IRB)
- Integrated Pest Management
- Integrative Anatomy Group
- Intensive English Program
- Intercollegiate Athletics
- Interdisciplinary Neuroscience Program
- Interdisciplinary Plant Group
- Interdisciplinary Reproduction and Health Group
- Interdisciplinary Studies
- International Admissions (undergraduate)
- International Center
- International Orientation
- International Programs
- International Studies
- International Teaching Assistant Program (ITAP)
- International Training Institute (MITI), Missouri
- Investigative Reporters and Editors (IRE)
- IT Accessibility Center
- Italian, see School of Languages, Literatures, and Cultures
- iTunes University