| Abbreviation | Definition |
|---|---|
| FHCI | Florida Hospital Cancer Institute |
| FHCRC | Fred Hutchinson Cancer Research Center |
| FHD | Fixed Head Disk |
| FHD | Family History Of Diabetes |
| FHF | Fulminant Hepatic Failure |
| FHF | First Horizontal Flight |
| FHF | Fetal Heart Frequency |
| FHI | Forest Health Initiative |
| FHL | Flexor Hallucis Longus |
| FHLB | Federal Home Loan Bank |
| FHMM | Factorial Hidden Markov Model |
| FHO | Failed Handover |
| FHP | Fuel High Pressure |
| FHP | Florida Highway Patrol |
| FHR | Fetal Heart Rate |
| FHS | Fetal Heart Sounds |
| FHS | Floppy Head Syndrome |
| FHS | Forward Heat Shield |
| FHS | Family Heart Study |
| FHS | Framingham Heart Study |
| FHST | Fixed-Head Star Tracker |
| FHST | Fixed Head Star Trackers |
| FHT | Fetal Heart Tones |
| FHT | Fast Hartley Transform |
| FHVP | Free Hepatic Venous Pressure |
| FHVP | Free Hepatic Vein Pressure |
| FI | Factory Integration |
| FI | Fuel Ignition |
| FI | Fault Identification |
| FI | Flight Instrumentation |
| FI | Field Investigation |
| FI | Fiscal Intermediary |
| FIA | Federal Investigation Agency |
| FIA | Federal Investigation Authority |
| FIA | Federation Of International Automobiles |
| FIAR | Failure Investigation Action Report |
| FIATT | Florida Invasive Animal Task Team |
| FIB | Force Intelligence Bureau |
| FIBS | Finnish International Baccalaureate Society |
| FIC | Fraternal Insurance Counselor |
| FIC | Fertiliser Industry Federation of Australia |
| FIC | Force Intelligence Centre |
| FIC | Firearms Incident Commander |
| FICA | Federal Insurance Contributions Act |
| FICCI | Federation of Indian Chambers of Commerce and Industry |
| FICG | Foreign Investment and Collaboration Guidelines |
| FID | Failure Identification |
| FID | Flight Implementation Directive |
| FID | Financial Information Data |
| FIDE | Federation International des Echecs (International Chess Federation) |