| IETL | Illinois Educational Technology Leaders 
| Others |
| IETL | Institut d'Etudies du Travail de Lyon
| Others |
| IETL | Institute for Education Teaching Leadership
| Others |
| IETL | Institute for Effective Teaching and Learning, Boise State University
| Others |
| IETL | Institute for European Traffic Law
| Others |
| IETL | Institute for Excellence in Teaching and Learning
| Others |
| IETL | Institute for Excellence in Teaching and Learning, Webster University
| Others |
| IETL | Integrated Environment Technologies, LTD.
| Others |
| IETL | Integrated Environmental Teaching Laboratory, Colorado School of Mines
| Others |
| IETL | Internet Engineering and Teaching Laboratory, Kent State University
| Others |