| FHF | Factor Homologous Factor 
| Others |
| FHF | Fag Hag Forever
| Others |
| FHF | Faith Has Fallen
| Others |
| FHF | Families Helping Families
| Others |
| FHF | Families of Highway Fatalities
| Others |
| FHF | Family History Federation
| Others |
| FHF | Farmers Home Furniture
| Others |
| FHF | Feature House Friday
| Others |
| FHF | Female Headed Family
| Others |
| FHF | Female-Headed Family
| Others |
| FHF | Fenrir Heroes Festival
| Others |
| FHF | Field Hockey Federation
| Others |
| FHF | Finally Home Foundation
| Others |
| FHF | First Horizontal Flight
| Others |
| FHF | Fish Hunt Fight
| Others |
| FHF | Fisher House Foundation
| Others |
| FHF | Flag Heritage Foundation
| Others |
| FHF | Flagel Huber Flagel
| Others |
| FHF | Flat Heads Fords
| Others |
| FHF | Florence Home Foundation
| Others |
| FHF | Florida Hawking Fraternity
| Others |
| FHF | For High Frequencies
| Others |
| FHF | Fostering Healthy Futures
| Others |
| FHF | Fred Hollows Foundation
| Others |
| FHF | Freeman Hospitals Foundation
| Others |
| FHF | Freunde Historischer Fahrzeuge
| Others |
| FHF | Friends Having Fun
| Others |
| FHF | Frit Happens Forum
| Others |
| FHF | Frosty Heidi and Frank
| Others |
| FHF | Fulminant Hepatic Failure
| Others |
| FHF | Fundamentals for Hematology Fellows
| Others |