Acca or ACCA may refer to:
Mythology Acca, one of the comrades of Camilla in Greek mythology Acca Larentia, goddess in Roman mythology
Organizations Aerospace Industries Association, previously the Aeronautical Chamber of Commerce Air Conditioning Contractors of America, a trade group for HVAC professionals American Clinical and Climatological Association, founded in 1884 American College Counseling Association American Corporate Counsel Association, now Association of Corporate Counsel (ACC), a group for attorneys of private-sector organizations Anglican Catholic Church in Australia Antiochian Catholic Church in America, one of the Independent Catholic Churches Association of Chartered Certified Accountants, a UK-based global accountancy body which offers the Chartered Certified Accountant qualification Association of Christian College Athletics, an organization of collegiate athletics Attenborough Centre for the Creative Arts, an arts centre in Brighton and Hove, UK Australian Centre for Contemporary Art, an art gallery in Melbourne United States Army Court of Criminal Appeals, an appellate court that reviews certain court-martial convictions of U.S. Army personnel
People Three Anglo-Saxon bishops: Acca of Dunwich, 7th century Bishop of Dunwich Acca of Hereford (died c. 764), Bishop of Hereford Acca of Hexham (c. 660 – 740/742), saint and Bishop of Hexham
Science and technology Acca (plant), a genus of plants native to South America Acetyl-CoA carboxylase, in biology Adaptive chosen-ciphertext attack, in cryptography Advanced Composite Cargo Aircraft, a project of the US Air Force Research Laboratory
Other uses ACCA: 13-ku Kansatsu-ka, a Japanese manga series written and illustrated by Natsume Ono Acre, Israel (transliterated as "Acca" from an Arabic spelling) Acca, a silk fabric decorated with gold, named for the city Accumulator bet, in gambling Armed Career Criminal Act, in law Acapulco (nightclub), a nightclub in Halifax, England known as the Acca