ACD

ACD may refer to:

Brands and enterprises

 * ACD (telecommunications company), carrier and Internet Service Provider, headquartered in Lansing, Michigan
 * ACD Systems, a computer software manufacturer
 * Advanced Chemistry Development (ACD/Labs), a chemistry software company

Organizations

 * ACD San Marcial, a Spanish football team based in Lardero, La Rioja
 * Adelaide College of Divinity, an Australian theological college
 * African Congress of Democrats, a South African political party
 * Arbeitsgemeinschaft der Christengemeinden in Deutschland (Association of Christian Churches in Germany)
 * Asia Cooperation Dialogue, an international organization
 * Asiatic Cavalry Division, a White Army unit that fought in the Russian Civil War
 * Centre Right Alliance (Romania) (Alianța de Centru Dreapta), a political alliance
 * Australasian College of Dermatologists, a medical specialist college

People

 * Arthur Conan Doyle, creator of Sherlock Holmes

Science and healthcare

 * ACD (gene), protein encoded by the ACD gene
 * α-Cyclodextrin, a glucose polymer
 * Alveolar capillary dysplasia, disorder of the lung
 * Anemia of chronic disease, form of anemia
 * Aragonite compensation depth, a property of oceans
 * Allergic contact dermatitis, form of contact dermatitis

Technology

 * Activity-centered design, design based on how humans interact with technology
 * Anti-collision device, on Indian railways
 * Apple Cinema Display, a line of monitors
 * Automatic call distributor, device that directs incoming phone calls
 * Average call duration, average length of telephone calls

Other uses

 * ACD (album), a 1989 album by Half Man Half Biscuit
 * Adjournment in contemplation of dismissal, court ruling to defer the disposition of a defendant's case
 * Antecedent-contained deletion in grammar
 * Activity cycle diagram, a systems modelling paradigm
 * Autoregressive conditional duration, a class of models used in financial econometrics
 * Kyode language (ISO 639-3 code), a Guang language of Ghana
 * Australian Cattle Dog, a breed of herding dog
 * Alcides Fernández Airport, an airport in Acandí, Colombia