| Abbreviation | Definition |
|---|---|
| IMU | International Metaphysical University |
| IMU | Internet Marketing University |
| IMUT | Inner Mongolia University of Technology |
| INABIF | Instituto NAcional de BIenestar Familiar |
| INACAP | La Universidad Tecnológica de Chile |
| INBIO | Instituto Nacional de Biodiversidad |
| INCA | Institute for Numerical Computation and Analysis |
| INCU | International Network of Customs Universities |
| INDI | Irish Nutrition and Dietetic Institute |
| INEB | Institute of Biomedical Engineering |
| INEP | Institute of Ecological Problems of the North |
| INET | Institute for New Economic Thinking |
| INFORMS | INstitute For Operations Research and the Management Sciences |
| INHS | Institute of Nursing and Health Sciences |
| INI | Institut National d'Informatique |
| INK | INnovation Knowledge |
| INMOL | Institute of Nuclear Medicine and OncoLogy |
| INMP | Initiative for Nanoscale Materials and Processes (Stanford) |
| INOR | Institute of Nuclear Medicine, Oncology, and Radiotherapy |
| INOU | International Non Olympic University |