| Abbreviation | Definition |
|---|---|
| ISIC | International Student Identity Card |
| ISIP | Industrial Scholar Interns Program |
| ISIP | International Student Interview Program |
| ISIS | Imaging Science and Information Systems department |
| ISIS | Innovative Student Information Services |
| ISIS | Institute for Software Integrated Systems |
| ISIS | Integral Studies of Inner Sciences |
| ISIS | Integrated Student Information System |
| ISIS | Interactive Student Information System |
| ISIS | I-series Student Information System |
| ISIT | Indiana Summer Institute For Technollogy |
| ISIT | Indiana Summer Institute for Technology |
| ISIT | Information Systems and Information Technology |
| ISL | Information Systems Laboratory |
| ISLE | Informal Science Learning Environment |
| ISLE | International Standards in Language Engineering |
| ISLU | Irkutsk State Linguistic University |
| ISM | Indian School of Mines |
| ISM | Institute of Science and Mathematics |
| ISM | International School Manila |