ACPA may refer to:

Organisations and schools Aboriginal Centre for the Performing Arts, Brisbane, Australia Air Canada Pilots Association, former trade union in Canada The Arts & College Preparatory Academy, Columbus, Ohio, U.S. Allegheny County Port Authority, former name of Pittsburgh Regional Transit American Catholic Philosophical Association, U.S. American China Policy Association, a former anti-Communist organisation American College Personnel Association, a student affairs organisation in Washington D.C., U.S. Armenian College and Philanthropic Academy, an Armenian school in Kolkata, India Association of Certified Public Accountants, former name of Certified Public Accountants Association, England, UK

Other uses Anticybersquatting Consumer Protection Act, a 1999 US law Anti-citrullinated protein antibody, an antibody to an individual's own proteins Arachidonylcyclopropylamide, a synthetic agonist of the cannabinoid receptor 1 4,4'-Azobis(4-cyanopentanoic acid), a free radical initiator used in polymer synthesis