IELS
| Acronym | Definition |
|---|---|
| IELS | Institute of English Language Studies |
| IELS | Interactive English Learning System |
| IELS | Institute for Environmental and Legal Studies (Mauritius) |
| IELS | Integrated Electronic Licensing System (New Jersey Department of Environmental Protection; Division of Fish and Wildlife) |
| IELS | Illinois Early Learning Standards (Illinois State Board of Education) |
| IELS | Islington Education Library Service (London, England, UK) |