| Acronym | Definition |
|---|
| HFAA➣Hardanger Fiddle Association of America (Minneapolis, MN) |
| HFAA➣Hotchkiss Fine Arts Association (Hotchkiss, CO) |
| HFAA➣Hellenic Finance and Accounting Association (Greece) |
| HFAA➣Holstein-Friesian Association of America |
| HFAA➣High Frequency Airborne Antenna |
| HFAA➣High Frequency Antenna Array |