IIHS
| Acronym | Definition |
|---|---|
| IIHS | Insurance Institute for Highway Safety (Arlington, VA) |
| IIHS | Insurance Institute for Highway Safety |
| IIHS | Institute of Integral Handwriting Studies |
| IIHS | International Institute of Health Studies (Ottawa, Canada) |
| IIHS | International Infant Hydrocephalus Study |
| IIHS | Incheon International High School (South Korea) |