| Acronym | Definition |
|---|
| IHHS➣International Hyperhidrosis Society |
| IHHS➣Indian Hills High School (Oakland, NJ) |
| IHHS➣International Home and Housewares Show |
| IHHS➣Interprofessional Health and Human Service (University of British Columbia; Canada) |
| IHHS➣Institute for Holistic Healing Studies (San Francisco State University) |
| IHHS➣International Heart Health Society (Institute for Health Research & Education; Canada) |