FBS
- FB (disambiguation)
- FBS (brokerage)
- FBS Radio Network
- Failed back syndrome
- Faith Baptist School (disambiguation)
- Fasting blood sugar
- Federal Bureau of Statistics
- Fellow of the Burgon Society
- Fetal bovine serum
- France Business School
- Friday Harbor Seaplane Base
- Friern Barnet School
- Frontiers in Bioscience
- Fukuoka Broadcasting System
- Function-Behaviour-Structure ontology
- Furness Building Society
- Lees-Haley Fake Bad Scale
- NCAA Division I Football Bowl Subdivision
- Ramallah Friends Schools