| Abbreviation | Definition |
|---|---|
| GTVI | Grenada Technical and Vocational Institute |
| GWI | Global Water Institute |
| GWI | Global Wellness Institute |
| GWI | Grape and Wine Institute |
| GYLI | Global Youth Leadership Institute |
| HAI | Historically Advantaged Institution |
| HARI | Hagen Avicultural Research Institute |
| HARI | Hagen Avicultural Research Institute's |
| HARI | Hindu American Religious Institute |
| HAVIT | Heart And Vascular Institute of Texas |
| HBBI | Harvest Baptist Bible Institute |
| HBGI | Historically Black Graduate Institutions |
| HBI | Hadassah Brandeis Institute |
| HBI | Helen Bader Institute |
| HBI | Hindustan Bible Institute |
| HBI | Historically Black Institution |
| HBI | Home Builders Institute |
| HBI | Human Behavior Institute |
| HBMI | Harper Bariatric Medicine Institute |
| HBOI | Harbor Branch Oceanographic Institute |