Editing PSD

'''PSD''' may refer to:

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==Educational bodies==
* [[Poudre School District]], a school district in Larimer County, Colorado

==Government and military==
* [[Payment Services Directive]], EU regulation for payment services
* [[Pesticides Safety Directorate]], UK
* Presidential Study Directive, a kind of [[national security directive]] from the Obama presidency
* Prevention of Significant Deterioration (PSD) permit, under the [[Clean Air Act (United States)]]
* Protective Services Detail, Personal Security Detachment, or Personal Security Detail; US military [[security detail]]s

==Language==
* [[Pennsylvania Sumerian Dictionary]], lexicography project for the ancient language isolate 
* [[Plains Indian Sign Language]] (ISO 639-3 code: psd)
* [[Proto-South Dravidian]], unattested language of south India

==Political parties==
===Africa===
* [[Social Democratic Party (Angola)]], a political party of Angola
* [[Social Democratic Party (Benin)]], a political party of Benin
* [[Social Democratic Party of Madagascar]], a political party of Madagascar
* [[Social Democratic Party (Rwanda)]], a political party of Rwanda
* [[Socialist Destourian Party]], former name (to 1988) of the ruling party in Tunisia, currently called Constitutional Democratic Rally

===Americas===
* [[Parti social démocratique du Québec]], a former provincial political party in Canada
* [[Democratic Socialist Party (Argentina)]], a defunct political party of Argentina
* [[Social Democratic Party (Brazil, 1945–65)]], a defunct political party of Brazil
* [[Social Democratic Party (Brazil, 2011)]], a current political party of Brazil
* [[Social Democratic Party (El Salvador)]], a political party of El Salvador
* [[Social Democratic Party (Mexico)]], a defunct political party of Mexico
* [[Social Democratic Party (Nicaragua)]], a political party of Nicaragua

===Europe===
* [[Civil Movement "People's Self-Defense"]], a defunct political movement in Ukraine which was part of the Our Ukraine–People's Self-Defense Bloc electoral alliance
* [[Party of Socialists and Democrats]], a major political party of San Marino
* [[Social Democratic Party of Albania]], a minor political party of Albania
* [[Social Democratic Party (France)]], a defunct political party of France
* [[Social Democratic Party (Moldova)]], a political party of Moldova
* [[Social Democratic Party (Portugal)]], a major political party of Portugal
* [[Social Democratic Party (Romania)]], a major political party of Romania
* [[Social Democratic Party (Spain)]], a defunct political party of Spain

==Science and engineering==
===Computing===
* Personal or [[portable storage device]]
* .psd, a [[Adobe Photoshop#File format|Photoshop document file extension]]
* Professional Scrum Developer, a course leading to certification for [[Scrum (development)]]
* [[Power spectral density]], the distribution of power per unit time into frequency components composing that signal.

===Medicine===
* [[Protein S deficiency]]
* [[Post-stroke depression]]
* [[Postsynaptic density]], a specialization of the cytoskeleton at the synaptic junction
* [[Psychiatric service dog]]

===Other uses in science and engineering===
* [[Particle size distribution]], in granular materials
* [[Platform screen doors]], in railway platforms
* [[Position sensitive device]] or detector, a two-dimensional photodetector
* [[Positive semidefinite (disambiguation)]]
* [[Power spectral density]], distribution of power of a signal
* [[Program Service Data]], data displayed on HD radio receiver

==Other uses==
* [[PSD (rapper)]], a Californian rapper and hip-hop producer
* [[Port Said Airport]], Egypt (IATA code PSD)
* [[Private Sector Development]], term used in international development
* [[PSD Bank]], German banking group

* Patricia Street Deli, a famous sandwich and soup restaurant located in the tourist town of Jasper, Alberta, Canada
* [[FK BRNO Field Pistol#FK PSD Multi-Cal|FK PSD]], a handgun chambered mainly in [[7.5 FK]] but also comes with barrels for [[10mm Auto]] and [[9×19mm Parabellum|9x19mm]]

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