PSF
# PSF

PSF is an abbreviation that may refer to:

## Organisations

### Political parties

* French Social Party (Parti Social Français)
* French Socialist Party (Parti Socialiste Français)
* Palestinian Popular Struggle Front
* Peoples Students Federation, the youth wing of the Pakistan Peoples Party
* Provisional Sinn Féin
* Socialist Party without Borders (Parti Socialiste sans Frontières), a leftist party in Chad

### Law enforcement

* Puntland Security Force
* 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
* P.S.F. Records, a record label
* Pressed Steel Fisher

### 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
* 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
* Polysulfone
* PSF, 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
