| Acronym | Definition |
|---|
| ISEP➣Instituto Superior de Engenharia do Porto |
| ISEP➣International Student Exchange Program |
| ISEP➣Institut Supérieur d'Electronique de Paris |
| ISEP➣Institute for Sustainable Energy Policies (Japan) |
| ISEP➣International Society for Environmental Protection |
| ISEP➣International Society for Evolutionary Protistology (Canada) |
| ISEP➣It's Someone Else's Problem |
| ISEP➣Interim Tactical ELINT Processor |
| ISEP➣International Society of Education Planners |
| ISEP➣Integrated Safety Evaluation Program |
| ISEP➣Institute for Strategic Energy Planning (Japan) |