PSF is an abbreviation that may refer to:

Organisations

Political parties

* French Social Party ''(Parti Social Français)'' (1936–1940), a right-wing nationalist party *

French Socialist Party The Socialist Party ( , PS) is a Centre-left politics, centre-left to Left-wing politics, left-wing List of political parties in France, political party in France. It holds Social democracy, social democratic and Pro-Europeanism, pro-European v ...

''(Parti Socialiste Français)'', active since 1969 *

Palestinian Popular Struggle Front The Palestinian Popular Struggle Front (PPSF, occasionally abbr. PSF) (Arabic: جبهة النضال الشعبي الفلسطيني, ''Jabhet Al-Nedal Al-Sha'abi Al-Falestini'') is a Palestinian political party. Samir Ghawshah was elected secr ...

* Peoples Students Federation, the youth wing of the

Pakistan Peoples Party The Pakistan Peoples Party (PPP) is a political party in Pakistan and one of the three major List of political parties in Pakistan, Pakistani political parties alongside the Pakistan Muslim League (N) and Pakistan Tehreek-e-Insaf. With a Cent ...

* Provisional Sinn Féin, Ireland * Socialist Party without Borders ''(Parti Socialiste sans Frontières)'', a leftist party in Chad

Law enforcement

* Public Security Forces the principal law-enforcement arm of the

Bahrain Bahrain, officially the Kingdom of Bahrain, is an island country in West Asia. Situated on the Persian Gulf, it comprises a small archipelago of 50 natural islands and an additional 33 artificial islands, centered on Bahrain Island, which mak ...

Ministry of Interior An interior ministry or ministry of the interior (also called ministry of home affairs or ministry of internal affairs) is a government department that is responsible for domestic policy, public security and law enforcement. In some states, th ...

Puntland Security Force The Puntland Security Force (PSF) is the Security forces, security force of the autonomous Puntland state in Somalia. The PSF was formed in 2002 to combat terrorism in the region and is independent from the federal government of Somalia and the Pu ...

, Somalia

Business and companies

* P.S.F. Records, a record label *

Pennsylvania Shakespeare Festival The Pennsylvania Shakespeare Festival (PSF) is a professional theatre company in residence at DeSales University in Center Valley, Pennsylvania and the official Shakespeare Festival of the Commonwealth of Pennsylvania. The Festival is organized ...

, a professional theatre company * Professional service firm, a company offering consulting, legal, or other services * Premium Standard Farms, Inc, a pork producer * Pressed Steel Fisher, a supplier of British car parts

Other organisations

* Pakistan Science Foundation * Pharmaciens Sans Frontières *

Phelps Stokes Fund The Phelps Stokes Fund (PS) is a nonprofit fund established in 1911 by the will of New York philanthropist Caroline Phelps Stokes, a member of the Phelps Stokes family. Created as the Trustees of Phelps Stokes Fund, it connects emerging leade ...

, a non-profit foundation * Pondicherry Science Forum *

Python Software Foundation The Python Software Foundation (PSF) is an American nonprofit organization devoted to the Python programming language, launched on March 6, 2001. The mission of the foundation is to foster development of the Python community and is responsible fo ...

Science and technology

Software and hardware

* 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 Progressive segmented Frame (PsF, sF, SF) is a scheme designed to acquire, store, modify, and distribute progressive scan video using interlaced equipment. With PsF, a progressive frame is divided into two ''segments'', with the odd lines in one s ...

, a scheme to handle progressive scan video using interlaced equipment *

Point spread function The point spread function (PSF) describes the response of a focused optical imaging system to a point source or point object. A more general term for the PSF is the system's impulse response; the PSF is the impulse response or impulse response ...

, the response of an imaging system to a point source * Protein Segment Finder, a search engine for the Protein Data Bank * Protein structure file for molecular dynamics, a

chemical file format A chemical file format is a type of data file which is used specifically for depicting molecular data. One of the most widely used is the chemical table file format, which is similar to ''Structure Data Format'' (SDF) files. They are text files ...

Chemistry

Polysulfone Polysulfones are a family of high performance thermoplastics. These polymers are known for their toughness and stability at high temperatures. Technically used polysulfones contain an aryl- SO2-aryl subunit. Due to the high cost of raw material ...

, a high-performance thermoplastic * Potassium fluorosilicate, specifically when referring to phosphors

Other science and technology

* Performance shaping factor, factor which poses a likelihood of influencing the success or failure of the performance of a task * Posterior

spinal fusion Spinal fusion, also called spondylodesis or spondylosyndesis, is a surgery performed by Orthopedic surgery#Practice, orthopaedic surgeons or neurosurgeons that joins two or more vertebrae. This procedure can be performed at any level in the spine ...

* Prolate spheroidal wave function

Units

Pounds per square foot The pound per square inch (abbreviation: psi) or, more accurately, pound-force per square inch (symbol: lbf/in2), is a unit of measurement of pressure or of stress based on avoirdupois units and used primarily in the United States. It is the pre ...

, a measure of

pressure Pressure (symbol: ''p'' or ''P'') is the force applied perpendicular to the surface of an object per unit area over which that force is distributed. Gauge pressure (also spelled ''gage'' pressure)The preferred spelling varies by country and eve ...

; see also

Pounds per square inch The pound per square inch (abbreviation: psi) or, more accurately, pound-force per square inch (symbol: lbf/in2), is a unit of measurement of pressure or of stress based on avoirdupois units and used primarily in the United States. It is the pre ...

* Price per square foot

Other

* Pittsfield Municipal Airport (IATA airport code: PSF) {{disambiguation