| IAEP | Idiopathic Acute Eosinophilic Pneumonia 
| Others |
| IAEP | Illinois Association of Environmental Professionals
| Others |
| IAEP | Implantable Artificial Endocrine Pancreas
| Others |
| IAEP | Independent Ag Enterprise Program
| Others |
| IAEP | Institutions and Elections Project
| Others |
| IAEP | Intensive Academic English Program
| Others |
| IAEP | Interactive Art Entertainment Programme
| Others |
| IAEP | Interim Alternative Education Placement
| Others |
| IAEP | Interim Alternative Educational Program
| Others |
| IAEP | Internal Auditing Education Partnership
| Others |
| IAEP | International Academic Exchange And Protocol
| Others |
| IAEP | International Academy Of Eclectic Psychotherapists
| Others |
| IAEP | International Alliance for Electronic Payments
| Others |
| IAEP | International Assessment Of Educational Progress
| Others |
| IAEP | International Association For Emergency Psychiatry
| Others |
| IAEP | International Association For Environmental Philosophy
| Others |
| IAEP | International Association of EMTs and Paramedics
| Others |
| IAEP | International Association of Environmental Philosophy
| Others |
| IAEP | International Association of Equine Professionals
| Others |
| IAEP | Io Atmospheric Extinction Project
| Others |