| Acronym | Definition |
|---|
| IEL | Instituto Euvaldo Lodi (Portuguese: Euvaldo Lodi Institute, Brazil) |
| IEL | Instituto de Estudos da Linguagem (Portuguese: Institute of Language Studies, Brazil) |
| IEL | International English Language (various locations) |
| IEL | Institute for Educational Leadership |
| IEL | Institute for Extended Learning |
| IEL | Internal Elastic Lamina |
| IEL | Intraepithelial Lymphocyte |
| IEL | IEEE Electronic Library |
| IEL | Institute of the Estonian Language (est. 1993; Estonia) |
| IEL | Induction Electrical Log (oil exploration) |
| IEL | Indo-European Language |
| IEL | Information Exchange List |
| IEL | Industries et Équipements Laliberté (Quebec, Canada) |
| IEL | Inclusive E-Learning (workshop) |
| IEL | Independent Electron |