IEHS
| Acronym | Definition |
|---|---|
| IEHS | Institute of Environmental Health Sciences |
| IEHS | Immigration and Ethnic History Society (est. 1965; various locations) |
| IEHS | Intensive English High School (Australia) |
| IEHS | Institute for Environment and Human Security (UN) |
| IEHS | International Endo Hernia Society (est. 2004; Greece) |
| IEHS | IBM (International Business Machines) Eclipse Help System (software) |