| Term | Full Form | Category |
|---|---|---|
| HIAI | H I A Inc | Others |
| HIAI | Harris Institute for Assured Information | Others |
| HIAI | Heartland Investment Associates Inc | Others |
| HIAI | Hepatic Intra Arterial Infusion | Others |
| HIAI | Historic Institutional Abuse Inquiry | Others |
| HIAI | Historical Institutional Abuse Inquiry | Others |