PAF may refer to: Computing Personal Ancestral File, a genealogy data program PME Aggregation Function, a networking technology Postcode Address File, a collection of UK postal addresses and postcodes, available from Royal Mail .PAF, filename extension of PortableApps files Medicine Paroxysmal atrial fibrillation Platelet-activating factor Population attributable fraction (epidemiology) Pure autonomic failure Military Palestinian Arab Front Protestant Action Force Air forces Pakistan Air Force PAF Academy Risalpur, see Pakistan Air Force Academy PAF College Lower Topa PAF College Sargodha Patrouille de France, an aerobatic team of the French Air Force Philippine Air Force Polish Air Force Science Phased array Feed Population attributable fraction Platelet-activating factor Other uses PAF (pickup), a first humbucker guitar pickup Paf (company), a Finnish gambling company Palestine Athletic Federation Performing Arts Festival of Indian Institute of Technology Bombay Professional Arena Football, a professional sport league launched in 2018 Pakuba Airport's IATA airport code Phineas and Ferb, an animated series See also PAF Public School (disambiguation), Pakistan Air Force-operated boarding schools