ABCD may refer to:

Entertainment

Film

  • ABCD (film), a 2005 Indian Tamil-language romance
  • ABCD: American Born Confused Desi (disambiguation)
  • ABCD: Any Body Can Dance, a 2013 Indian Hindi-language dance-drama
  • ABCD 2, the 2015 sequel

Music

  • ABCD (song), a 2024 South Korean song by Nayeon of Twice

Science and technology

Medicine

  • ABCD, a variation of ABC (medicine), a medical mnemonic
  • ABCD guideline, used in diagnosis of melanoma
  • ABCD rating, a staging system for prostate cancer
  • ABCD syndrome, a genetic disorder
  • Amphotericin B colloidal dispersion, an antifungal preparation

Other uses in science and technology

  • ABCD Schema, a data exchange and access model in biology
  • ABCD Study, the Adolescent Brain Cognitive Development longitudinal study
  • ABCD matrix analysis, or ray transfer matrix analysis
  • ABCD-parameters, in a two-port network
  • ABCd, an American TV streaming service
  • ABCD (add, browse, change, delete) a variation of create, read, update and delete in computer programming

Other uses

  • ABCD line, embargoes placed against the Japanese Empire by the Americans, British, Chinese and Dutch
  • ABCD Region, an industrial district outside of São Paulo, Brazil
  • ABCD ships (Atlanta, Boston, Chicago and Dolphin) of Delaware River Iron Ship Building and Engine Works
  • Action for Boston Community Development, an American organization
  • American-born confused desi, informal term for South Asian Americans
  • Asset-based community development, a methodology for the sustainable development of communities
  • Association of Better Computer Dealers, now CompTIA
  • "ABCD" companies that dominate world agricultural commodity trading: Archer-Daniels-Midland, Bunge, Cargill, Louis Dreyfus

See also

  • ABC (disambiguation)
  • ABCD1, a protein
  • ABCD2 score, a score for determining the risk of stroke after a transient ischemic attack
  • English alphabet