APL

APL is an abbreviation, acronym, or initialism that may refer to:

Science and technology

 * 132524 APL, an asteroid
 * Abductor pollicis longus muscle, in the human hand
 * Acute promyelocytic leukemia, a subtype of acute myelogenous leukemia
 * Applied Physics Letters, a physics journal
 * Nampula Airport (IATA airport code: APL), in Mozambique

Computers

 * .apl, the file extension of the Monkey's Audio metadata file
 * AMD Performance Library, renamed Framewave, a computer compiler library
 * APL (programming language), an array-based programming language
 * APL (codepage), the character set for programming in APL
 * Address Prefix List, a DNS record type
 * Address (programming language), an early high-level programming language developed in the Soviet Union
 * Advanced Physical Layer, an extension of Ethernet 10BASE-T1L for field devices
 * Alexa Presentation Language, a language for developing Amazon Alexa skills
 * Associative Programming Language, a database query language

Software licences

 * Adaptive Public License, an Open Source license from the University of Victoria, Canada
 * AROS Public License, a license of AROS Research Operating System
 * Arphic Public License, a free font license

Organizations

 * APL (shipping company), a Singapore-based container and shipping company
 * Aden Protectorate Levies, a militia force for local defense of the Aden Protectorate
 * Advanced Production and Loading, a Norwegian marine engineering company formed in 1993
 * Afghanistan Premier League, an Afghan Twenty20 cricket league
 * Afghan Premier League, a men's football league in Afghanistan
 * American Patriot League, a proposed American football spring league
 * American Premiere League, a Twenty20 cricket league in the US
 * American President Lines, a container transportation and shipping company
 * American Protective League, a World War I-era pro-war organization
 * Applied Physics Laboratory, at Johns Hopkins University
 * Applied Physics Laboratory at the University of Washington
 * Association of Pension Lawyers, UK
 * Aurora Public Library (disambiguation)
 * Australian Professional Leagues, an Australian soccer governing body
 * Irish Anti-Partition League, a Northern Ireland political organisation

Other uses

 * apl.de.ap (born 1974), pseudonym of Allan Pineda Lindo, Filipino–American musician
 * A US Navy hull classification symbol: Barracks craft (APL)