FBD

FBD may refer to:

Science and technology

 * Flange back distance
 * Free body diagram
 * Fully Buffered DIMM
 * Function block diagram, a graphical language for programmable logic controller design
 * Functional block diagram, a block diagram in systems engineering

Transport

 * Braine-l'Alleud railway station, in Belgium
 * Flemington Bridge railway station, in England
 * Farrukhabad Junction railway station, in Uttar Pradesh, India
 * Fayzabad Airport, in Afghanistan

Other uses

 * Far Beyond Driven, an album by American metal band Pantera
 * FBD Holdings, an Irish insurance company
 * Freshfields Bruckhaus Deringer, a British law firm