| Abbreviation | Definition |
|---|---|
| IREI | Island Research Educational Initiative |
| IRENE | Institute for Research and Education on Negotiation in Europe |
| IRES | International Research and Educational Society |
| IRET | Institute of Rehabilitation Education and Training |
| IRIS | Instructional Resource Information System |
| IRIS | Ivanhoe Reading Intervention Scheme |
| IRISE | Ikeda Research Institute for Soka Education |
| IRISE | Improving Results In Secondary Education |
| IRISE | India in Research Innovation and STEM Education |
| IRL | Independent Reading Level |
| IRL | International Reading Literacy |
| IRLA | Independent Reading Learning Assessment |
| IRM | Instructional Recreation Module |
| IRMT | Institute of Registered Music Teachers |
| IRP | Independent Reading Program |
| IRP | Independent Reading Project |
| IRP | Individualized Reading Program |
| IRPE | Institute for Retirees in Pursuit of Education |
| IRRL | Image Relevance Reinforcement Learning |
| IRT | Interpersonal Relations Training |