| Acronym | Definition |
|---|
| FBT | Fringe Benefit Tax |
| FBT | Flyback Transformer |
| FBT | Fused Biconic Taper (fiber optic connector) |
| FBT | Fixed Broadband Terminal |
| FBT | Family Behavior Therapy (various organizations) |
| FBT | Food, Beverages and Tobacco |
| FBT | First Business Travel |
| FBT | Feedback Technology |
| FBT | Functional Boxing Training |
| FBT | Funny but True |
| FBT | Federatie van de Belgische Textielverzorging (Dutch: Federation of Belgian Textile Care; Belgium) |
| FBT | Fire Boat |
| FBT | Floridians for Better Transportation |
| FBT | Fruit Basket Turnover |
| FBT | Fire Bell Test (UK; fire drill) |
| FBT | Florence Baptist Temple (Florence, SC) |
| FBT | Functional Board Test |
| FBT | Fédération des Bourses du Travail (French: Federation of Labor Exchanges; France) |
| FBT | Fused Biconic Technology |
| FBT | Fuel Bar Trioxine |
| FBT | Fixed Base Temporary (radio frequency) |
| FBT | F-Bus Terminator |
| FBT | Full Body Tourettes (Mike Patton song) |
| FBT | Fuse Blasting Time (ammunition) |