| Abbreviation | Definition |
|---|---|
| IRISE | Ikeda Research Institute for Soka Education |
| IRISE | India in Research Innovation and STEM Education |
| IRISE | Indigenous Research Institute for Student Empowerment |
| IRL | Industrial Research Limited |
| IRL | Industrial Research Ltd |
| IRL | Institute for Research on Learning |
| IRL | Internet Research Lab |
| IRN | Implementation Research Network |
| IRN | Independent Research Network |
| IRN | Intel Research Network |
| IRN | Interdisciplinary Research Networks |
| IRN | Internal Research Notes |
| IRN | International Research Network |
| IRN | International Research Networks |
| IRNN | Irish Research Nurses Network |
| IRO | Institutional Research Office |
| IROP | International Research Opportunities Programme |
| IROP | International Research Opportunity Program |
| IROST | Iranian Research Organization for Science and Technologies |
| IRP | Independent Research Project |