DTD

DTD may refer to:

Arts and entertainment

 * Desktop Tower Defense, a Flash-based strategy game
 * DTD (TV station), a digital television station in Darwin, Northern Territory, Australia
 * December to Dismember, a former wrestling pay-per-view event
 * Dust-to-Digital, a record label specializing in American folk music

Science and technology

 * Data transfer device, as found in AN/CYZ-10, a cryptographic device for receiving, storing, and transferring keys
 * Detailed timing descriptor, a block containing supported output resolution details in Extended Display Identification Data
 * Document type definition, used in markup languages such as XML
 * Direct-to-disk recording, recording of audio or video to random access digital media as opposed to tape

Medicine

 * Developmental topographical disorientation, a cognitive disorder marked by inability to navigate within the environment
 * Diastrophic dysplasia, an autosomal recessive dysplasia which affects cartilage and bone development
 * Developmental trauma disorder, a childhood equivalent of complex post-traumatic stress disorder

Other uses

 * Danube–Tisa–Danube Canal, a water system in Serbia
 * Dekoratie voor Trouwe Dienst, a military decoration of the South African Defence Force between 1921 and 1946
 * Delta Tau Delta, a U.S.-based college fraternity