PFD

PFD may refer to:

Science, technology, and medicine

• Personal flotation device, a device designed to keep a wearer afloat in water
• Partial fraction decomposition, a process used to reduce the degree of the numerator or denominator of a fraction
• Phase frequency detector, a device which compares the phase of two input signals
• Primary flight display, a modern aircraft instrument dedicated to flight information
• Probability of Failure on Demand, see Safety integrity level
• Process flow diagram, a diagram of the general flow of plant processes and equipment
• Prepared for dyeing, a fabric or garment that is specially made to be dyed
• Pelvic floor disorder or Postpartum pelvic floor dysfunction, a group of clinical conditions
• Professional Disc, recordable optical disc format
• PFD allowance, the adjustment done to the normal time to recover the lost time due to personal needs, fatigue, and unavoidable delays

Organizations

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

Other uses

• Permanent Fund Dividend, see Alaska Permanent Fund Dividend
• Public forum debate, a debate event in the National Forensic League and National Catholic Forensic League
• Plot Forwarding Device, a prop or event used on a TV show or film to advance the plot quickly, for an example see Tokio ya no nos quiere#Plot summary
• Public Facilities District, a governmental entity entrusted with constructing, building, and maintaining large public facilities e.g. Spokane Public Facilities District