| Abbreviation | Definition |
|---|---|
| HAEE | Hungarian Association of Environmental Enterprises |
| HAEL | Honor Association of Exceptional Learning |
| HAFA | Hmong American Friendship Association |
| HAFAGA | Hellenic Air Force Academy Graduates Association |
| HAFFA | Heart of America Free Flight Association |
| HAFSA | Hispanic American Fuzzy Systems Association |
| HAFTA | Halton Agreement Forest Trail Association |
| HAGA | Houston Area Golf Association |
| HAGO | Heartland Association of Gynecologic Oncology |
| HAHA | Harrisburg Area Homeschoolers Association |
| HAHE | Hispanic Association for Higher Education |
| HAHK | Handbell Association of Hong Kong |
| HAHU | Houston Association of Health Underwriters |
| HAIA | Haitian American Immigrant Association |
| HAIC | Harbor Association of Industry and Commerce |
| HAIC | Harbor Association of Industry Commerce |
| HAK | Horticultural Association of Kenya |
| HALA | Humanist Association of Los Angeles |
| HALB | Harvard Association for Law and Business |
| HALB | Hmong Association of Long Beach |