- AFSB stands for Army Field Support Brigade
- AFSB stands for Associate in Fidelity and Surety Bonding (insurance)
- AFSB stands for Afloat Forward Staging Base
- AFSB stands for Air Force Studies Board (National Academy of Sciences)
- AFSB stands for Air Force Selection Board (India)
- AFSB stands for Australian Flying Saucer Bureau
- AFSB stands for Anaerobic Fluidized Sludge Blanket
- AFSB stands for Air Force Space Badge
- AFSB stands for Arcelor Finance & Services Belgium
AFSB