ACJ

ACJ may refer to:


 * Acromioclavicular joint
 * Airbus Corporate Jets
 * American Council for Judaism
 * Asian College of Journalism, Bangalore
 * Asian College of Journalism, Chennai
 * Anuradhapura Airport (IATA: ACJ)
 * ACJ O Shopping Corporation, owner of Philippines channel O Shopping
 * Jazz Aviation, formerly known as Air Canada Jazz