PFD

Science, technology, and medicine

 * Personal flotation device
 * Pelvic floor dysfunction
 * Phase frequency detector in electronics
 * Primary flight display, in an aircraft
 * Probability of Failure on Demand, see Safety integrity level
 * Process flow diagram, in process engineering
 * Prepared for dyeing
 * Professional Disc, recordable optical disc format
 * PFD allowance in work systems
 * Partial fraction decomposition
 * Perfluorodecalin, a molecule capable of dissolving large amounts of gas
 * Pediatric feeding disorder, a unifying diagnostic term encompassing medical, nutrition, feeding skill, and psychosocial domains

Organizations

 * Philadelphia Fire Department
 * Pigespejdernes Fællesråd Danmark, Guiding federation of Denmark
 * Peters, Fraser & Dunlop, an English literary and talent agency

Other uses

 * Permanent Fund Dividend of Alaska Permanent Fund
 * A prevention of future deaths report issued by a coroner in the United Kingdom