| Rank | Abbreviation | Meaning |
|---|
| ***** | IHFA | Integrated High-Frequency Antenna
| |
| **** | IHFA | Idaho Housing and Finance Association
| |
| **** | IHFA | Idaho Hay and Forage Association
| |
| **** | IHFA | Independent Hardee's Franchisee Association
| |
| **** | IHFA | In Hands of Foreign Authorities
| |
| *** | IHFA | Integrated Health Facility Assessment
| |
| *** | IHFA | Indiana Housing Finance Agency
| |
| *** | IHFA | Industrial Hygiene Foundation of America
| |
| *** | IHFA | Illinois Health Facilities Authority
| |
| *** | IHFA | Illinois Health Facility Authority
| |
| ** | IHFA | Idaho Housing Finance Agency
| |
| ** | IHFA | Industrial Hemp Farming Act
| |
| ** | IHFA | Irish Holstein Friesian Association
| |
| ** | IHFA | Idaho Housing Finance Authority
| |
| ** | IHFA | Idaho Housing and Finance Administration
| |
| ** | IHFA | Intercounty Health Facilities Association
| |
| * | IHFA | Indiana Housing Finance Authority
| |
| * | IHFA | Integration Host Factor Alpha
| |
| * | IHFA | International Helicopter Firefighters Association
| |
| * | IHFA | Indiana Housing Financing Authority
| |
| * | IHFA | Indiana Housing Finance Association
| |
| * | IHFA | Independent Health Facilities Act
| |
| * | IHFA | Irish Holstein Fresian Association
| |