| Acronym | Definition |
|---|
| FBS | Fetal Bovine Serum (culture media) |
| FBS | Football Bowl Subdivision (formerly NCAA Division 1-A) |
| FBS | Football Bowl Subdivision |
| FBS | Fidelity Brokerage Services |
| FBS | Faculty of Biological Sciences (various locations) |
| FBS | First Baptist School (various locations) |
| FBS | Fasting Blood Sugar |
| FBS | Functional Blocks |
| FBS | Flatbed Scanner |
| FBS | Frame Builder Server |
| FBS | Framesoft Business Server |
| FBS | Fallback Switch |
| FBS | Font and Bitmap Server |
| FBS | Ferro Backup System |
| FBS | Fading Brake Support |
| FBS | Fatboy Slim (band) |
| FBS | Fukuoka Broadcasting System (Japan) |
| FBS | Federal Bureau of Statistics (Pakistan) |
| FBS | Football de la Boucle de Seine (French football club) |
| FBS | Functional Breakdown Structure |
| FBS | File Backup System (computing) |
| FBS | Florida Blood Services (St. Petersburg, FL) |
| FBS | Feel Better Soon |
| FBS | Failed Back Syndrome (post-surgical condition) |
| FBS | Food Balance Sheet (various organizations) |
| FBS | French Business School |
| FBS | Fight Before Surrender (band) |
| FBS | Facility Booking System |
| FBS | Food and Beverages Service |
| FBS | Fulcrum Business Solutions (various locations) |
| FBS | Free Basic Services (South Africa) |
| FBS | Funktionsbausteinsprache (German: Function Block Diagram) |
| FBS | France Brochure System (est. 1989) |
| FBS | Foreign Body Sensation |
| FBS | Fanconi-Bickel Syndrome |
| FBS | Fixed-Base Simulator |
| FBS | Fetal Blood Sample |
| FBS | Fall Board Skins |
| FBS | Floor Building System |
| FBS | Frequency Based Scheduler |
| FBS | Flexible Bandwidth Service |
| FBS | Future Business Systems (North Caulfield, VIC, Australia accounting software) |
| FBS | Forward-Based Systems |
| FBS | Freudenberg Building Systems (Lawrence, MA) |
| FBS | Fueled by Silence (band) |
| FBS | Firebrand Saints (Cambridge, MA) |
| FBS | Firefighters Breathing System (US NASA) |
| FBS | Fresh Body Shop (band) |
| FBS | Fédération Belge de Scrabble |
| FBS | Field Base Supervisor (education) |
| FBS | Franklin Building Supply (Idaho) |
| FBS | Field Bus System |
| FBS | Fighter-Bomber Strike |
| FBS | Finance Battlefield System |
| FBS | Floodplain Boundary Standard |
| FBS | Fleet Broadcast System |
| FBS | Fusion Block System |
| FBS | Fellow of the Burgon Society |
| FBS | Frequency Bank System |
| FBS | Flare Buildup Study |
| FBS | Finished Bore Size (measurement) |
| FBS | Fast Burst Synchronization |
| FBS | Fahr Berechtigungs System (Mercedes-Benz) |
| FBS | Freight Billing System |
| FBS | Facilities Based Carrier |
| FBS | Flat Bottom Structure |
| FBS | Front Bass |
| FBS | Functional Baseline Solution |
| FBS | First Break Suppression (seismic data processing) |
| FBS | Focus Business Services (Cyprus) |
| FBS | File Based Syndication (software; Australian Broadcasting Corporation) |
| FBS | Fortified Barrier System |
| FBS | Full Belly Syndrome |
| FBS | Fat Baby Syndrome (aka macrosomia) |