| Acronym | Definition |
|---|
| ISEN | Industrial and Systems Engineering (various schools) |
| ISEN | Institut Supérieur d'Électronique du Nord (French: Northern Higher Institute of Electronics) |
| ISEN | Institut Supérieur de l'électronique et du Numérique (French) |
| ISEN | Illinois Student Environmental Network (Urbana, IL) |
| ISEN | Internet Search Environment Number |
| ISEN | Inclusion and Special Educational Needs (program; UK) |
| ISEN | Interdisciplinary Software Engineering Network (grant) |
| ISEN | International Symposium on Environmental Nanotechnology |