| Acronym | Definition |
|---|
| IEH➣International Environment House (Geneva, Switzerland) |
| IEH➣Institute for Environment and Health |
| IEH➣Instituto Euromediterráneo de Hidrotecnia |
| IEH➣Integrative Energy Healing (wellness) |
| IEH➣International Extreme-UV Far-UV Hitchhiker |
| IEH➣Intermediate Effective Hamiltonian |
| IEH➣Individual Event History |
| IEH➣Ideal Engineering Hours |