IHIS
| Acronym | Definition |
|---|---|
| IHIS | Interoperability of Heterogeneous Information Systems (workshop; Association for Computing Machinery) |
| IHIS | Integrated Health Interview Series (Minnesota Population Center) |
| IHIS | Integrated Healthcare Information System |
| IHIS | Integrated Hazard Information System (US Department of Homeland Security) |
| IHIS | International High IQ Society (usually seen as IHIQS) |
| IHIS | Integrated Hit Indicator System |