| Acronym | Definition | 
|---|
| IIH➣Idiopathic Intracranial Hypertension (abnormal increase in the pressure of the cerebral spinal fluid without obstruction or known cause) | 
| IIH➣Is-Is Hello | 
| IIH➣Intensive in-Home (health service) | 
| IIH➣Institute of International Health | 
| IIH➣Intermediate-system To Intermediate-system Hello | 
| IIH➣Branschföreningen För Industriell Och Institutionell Hygien (Swedish union of industrial and institutional hygiene) | 
| IIH➣Intelligent Information Handler |