'''APL''' is an abbreviation, acronym, or initialism that may refer to:
*[[APL (programming language)]], a computer programming language with specialized array processing capabilities
*[[Application Library File]], Suffix for Computer-Files (Centura Team Developer)
*[[APL Workspace file]], Suffix for Computer-Files
*[[Above Poverty Line]], the section of people who can fulfil their minimum basic needs
*[[Accreditation of Prior Learning]], a continuing education method
*[[Acute promyelocytic leukemia]], a subtype of acute myelogenous leukemia
*[[apl.de.ap]], pseudonym of Allan Pineda Lindo, a member of hip hop group [[The Black Eyed Peas]]
*[[Aide Personnalisée au Logement]], French financial aid
*[[AMD Performance Library]], a compiler library for AMD multi-threaded processors
*[[American President Lines]], a Singapore-based container transportation and shipping company
*[[American Protective League]], a WWI era pro-war organization
*''Analog Private Line'', a dedicated analog line leased from a telecommunications provider
*''apl'', file extension of the [[Monkey's Audio]] metadata file
*''APL'', United States Navy [[hull classification symbol]] for Barracks Craft
*[[Applied Living]], a comic drawn by David Olson and written by Shaun Meyers.
*[[Applied Physics Letters]], journal published by American Institute of Physics
*[[Applied Physics Laboratory]], Johns Hopkins University
*[[Applied Physics Laboratory (UW)|Applied Physics Laboratory]], University of Washington
*[[Ascension Parish Library]], a parish library system in [[Louisiana]]
*[[Association of Pension Lawyers]]
*[[Australian Poker League]]
*[[Australian Pork Limited]]
*[[Australian Premier League]], an online football gaming league
*[[Average Picture Level]], a [[Wikipedia:Federal Standard 1037C terms|Federal Standard 1037C term]]
*[[Nampula Airport]], Mozambique, from its IATA airport code
* several software licenses, including:
**[[Adaptive Public License]]
**''AROS Public License'', license of [[AROS Research Operating System]], formerly [[Amiga Research Operating System]]
**''Arphic Public License'', license of freely available fonts for East Asian codepages on [[Wikipedia:Enabling East Asian characters#Debian GNU/Linux|Debian and Gentoo]]

Furthermore, APL is the name of an asteroid: [[132524 APL]]

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