 Federal Housing Administration | Business |
| Federal Highway Administration | Military |
| Foreign Humanitarian Assistance | Military |
| Farmers Home Administration | Science |
| Federal Housing Authority | Business |
| Fair Housing Act | Business |
| Flight Hardware Availability | Science |
| Bureau for Food and Humanitarian Assistance | Military |
| Familial Hyperalphalipoproteinemia | Medical |
| Familial Hypoalphalipoproteinemia | Medical |
| Family History of Alcoholism | Medical |
| Family History of Atopy | Medical |
| Federal Houses Association | Business |
| Federal Housing Adminstration | Military |
| Filamentous Haemagglutinin | Medical |
| Filamentous Hemagglutinin | Medical |
| Finite Helical Axis | Medical |
| Fire Hazard Analysis | Science |
| Fire Hazards Analysis | Science |
| Fish Habitat Area | Government |