| Abbreviation | Definition |
|---|---|
| FB | Fingerbreadth |
| FB | Foot Binarity |
| FBA | Fellow of British Academy |
| FBA | Fellow of the British Academy |
| FBAR | Foreign Bank Account Report |
| FBC | Fluidised Bed Combustion |
| FBC | Full Blood Count |
| FBC | Fluidized-Bed Combustion |
| FBC | Fire Burn Clan |
| FBC | Foreign Bank Charges |
| FBCH | Follicular Basal Cell Hyperplasia |
| FBCS | Fixed Base Crew Station (SMS) |
| FBD | Forearm Bone Density |
| FBD | Functional Bowel Disorder/distress |
| FBDO | Fellow of British Dispensing Opticians |
| FBE | Full Blood Examination |
| FBES | Finnish Book-Entry System |
| FBI | Federal Bureau of Investigation |
| FBI | Female Body Inspector |
| FBI | Feeling Brutally Inclined |
| FBM | Free Collective |
| FBO | Flag Banking Officer |
| FBO | Fixed Base Operator |
| FBO | For the Benefit Of .... |
| FBO | Final Buy Out |
| FBOA | Football Banning Order Authority |
| FBP | Femoral Blood Pressure |
| FBR | Fast Bone Regeneration |
| FBS | Fasting Blood Sugar |
| FBS | File Backup System |
| FBS | Flare Buildup Study |
| FBS | Finance and Business Services |
| FBT | Fecal Blood Test |
| FBT | Fringe Benefit Tax |
| FBTR | Fast Breeder Test Reactor |
| FBU | Fire Brigades Union |
| FBU | Finance Bank Utility |
| FBV | Fuel Bleed Valve |
| FC | Financial Commissioner |
| fc | footcandle |
| FC | Fibre Channel |
| FC | Freeze Candidate |
| FC | Female Channeler |
| FC | Foreign Correspondent |
| FC | Frequency Control |
| FC | Flight Computer |
| FC | Flight Critical |
| FC | Furnace Container |
| FC | Franklin County Agricultural Society |
| FC | Finance Charge |