ACL

ACL may refer to:

Medicine

 * Anterior cruciate ligament, a ligament of the knee
 * Anterior cruciate ligament injury, a common sports injury
 * Anti-cardiolipin antibodies
 * ATP citrate synthase, or ATP citrate lyase, an enzyme

Companies and organizations

 * ACL Cables, a cable manufacturing company in Sri Lanka
 * Administration for Community Living, United States, funds groups that support elderly and disabled
 * American Classical League, promotes study of Ancient Rome, Ancient Greece, Latin and Greek
 * Arctic Co-operatives Limited, federation of co-operative businesses in Canada
 * Association for Computational Linguistics, international professional association
 * Association of Costs Lawyers, England and Wales
 * Ateliers et Chantiers de la Loire, a French shipbuilding company
 * Atlantic Coast Line Railroad, United States
 * Atlantic Container Line, a shipping company
 * Australian Christian Lobby, a right wing Christian campaigning group
 * Ateliers de Construction du Livradois, later Teilhol, a French car manufacturer

Sports

 * AFC Champions League, Asian football competition
 * Arena Coventry Limited, owner of the Coventry sports arena
 * American Cornhole League
 * Arizona Complex League, a US baseball league

Transportation

 * Cesar Airport, Aguaclara, Colombia (IATA code: ACL)
 * Acle railway station, UK (station code: ACL)
 * Atlantic City Line, New Jersey, US

Computing

 * Access-control list in computer security
 * Galvanize (software company), formerly ACL, and its Audit Command Language
 * ACL2, theorem prover
 * Agent Communications Language or FIPA-ACL
 * Asynchronous Connection-oriented Logical transport, Bluetooth protocol

Entertainment

 * Austin City Limits, a television show
 * Austin City Limits Music Festival

Other meanings

 * Akar-Bale language, an extinct Great Andamanese language (ISO 639-3 code ACL)
 * Christian Liberal Alliance (ACL), a Romanian electoral alliance
 * Australian Consumer Law