DAT or Dat may refer to:
Science Diamyltryptamine, a tryptamine derivative Direct agglutination test, any test that uses whole organisms as a means of looking for serum antibody Direct antiglobulin test, one of two Coombs tests Dopamine transporter or dopamine active transporter, a membrane-spanning protein DaT Scan, a diagnostic test for Parkinson's disease and related conditions
Education Dental Admission Test, taken by dental school candidates the US and Canada Design and Technology, school subject in primary and secondary school
Technology .dat, computer filename extension, typically for a file considered to contain data dat (software), a decentralized data tool for distributing data small and large. DAT Solutions, or Dial-A-Truck, provider of electronic transportation information Digital Audio Tape, an audio recording and playback medium Double acting tanker, a type of icebreaking tanker ship Dynamic Acceleration Technology, increases single-threaded performance on multi-core processors Dynamic Address Translation, IBM's term for virtual memory mapping: Virtual memory#History
Transport DAT (airline), an airline based in Vamdrup, Denmark Datong Yungang International Airport, an airport with the IATA code of DAT in Shanxi Province, China DAT, the ICAO code for Canadian airline Lynx Air DAT, the National Rail code for Datchet railway station in the county of Berkshire, UK Delta Air Transport, former Belgian airline Delivered at Terminal, a former Incoterms term whereby the seller pays all transport costs
Media and entertainment Day After Tomorrow (band), a 3-member J-pop band under the Avex label Dat (song), a song written and recorded by Pluto Shervington DAT (newspaper), a Kazakh news source
Other Abbreviation for grammatical dative case Desk appearance ticket, a New York order to appear in criminal court Disaster Action Team, the local disaster response unit of the American Red Cross Drug action teams, involved in applying UK drugs policy Dolphin-assisted therapy, swimming with dolphins as a therapy DAT (chemotherapy) is a regimen that consists of Daunorubicin, Ara-C (cytarabine) and Thioguanine Divergent Association Test (DAT) is a psychological creativity test DAT (), a type of Ukrainian legal entity
See also Dietmar Dath (born 1970), German author, journalist and translator