PSF

PSF is an abbreviation that may refer to:

Political parties

 * French Social Party (Parti Social Français) (1936–1940), a right-wing nationalist party
 * French Socialist Party (Parti Socialiste Français), active since 1969
 * Palestinian Popular Struggle Front
 * Peoples Students Federation, the youth wing of the Pakistan Peoples Party
 * Provisional Sinn Féin, Ireland
 * Socialist Party without Borders (Parti Socialiste sans Frontières), a leftist party in Chad

Law enforcement

 * Puntland Security Force, Somalia
 * Public Security Forces the principal law-enforcement arm of the Bahraini Ministry of Interior

Business and companies

 * Professional service firm, a company offering consulting, legal, or other services
 * Premium Standard Farms, Inc, a pork producer
 * P.S.F. Records, a record label
 * Pressed Steel Fisher, a supplier of British car parts

Other

 * Pakistan Science Foundation
 * Pharmaciens Sans Frontières
 * Pondicherry Science Forum
 * Python Software Foundation

Technology

 * PC Screen Font, a font format used in Linux systems
 * Physical Storage Format, a data format for navigation data
 * Portable Sound Format, a file format
 * Progressive segmented frame, a scheme to handle progressive scan video using interlaced equipment
 * Protein structure file for molecular dynamics, a chemical file format
 * Point spread function, the response of an imaging system to a point source
 * Protein Segment Finder, a search engine for the Protein Data Bank
 * Polysulfone, a high-performance thermoplastic
 * Potassium fluorosilicate, specifically when referring to phosphors

Units

 * Price per square foot
 * Pounds per square foot, a measure of pressure; see also Pounds per square inch

Other

 * Prolate spheroidal wave function
 * Pennsylvania Shakespeare Festival
 * Phelps Stokes Fund
 * Pittsfield Municipal Airport (IATA airport code: PSF)
 * Posterior spinal fusion