| Acronym | Definition |
|---|
| SIHI➣Southern Institute for Health Informatics (UK; est. 1998) |
| SIHI➣Steady Inductive Helicity Injection |
| SIHI➣Suicidal Ideation, Homicidal Ideation (psychiatry) |
| SIHI➣Societal Impact of Hearing Impairment (European Hearing Instrument Manufacturers Association) |
| SIHI➣Southern Illinois Heart Institute (St. Louis, IL) |
| SIHI➣Student International Health Initiative (online journal) |
| SIHI➣Siemen and Hinsch (Sterling Fluid Systems pump brand) |