Look up DTD in Wiktionary, the free dictionary.

DTD may stand for:

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, part of the extended display identification data
• Document type definition, used in markup languages such as XML
• Desktop Tower Defense, a Flash-based strategy game
• Direct-to-disk recording, recording of audio or video to random access digital media as opposed to tape
• Danube–Tisa–Danube Canal, a water system in Serbia

Other uses

• DTD (TV station), a digital television station in Darwin, Northern Territory
• Dust-to-Digital, a record label specializing in American folk music
• December to Dismember, a former wrestling pay-per-view event
• 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
• Developmental topographical disorientation, a cognitive disorder marked by inability to navigate within the environment
• Developmental Trauma Disorder also known as complex post-traumatic stress disorder, a possible result of childhood abuse
• Diastrophic dysplasia, an autosomal recessive dysplasia which affects cartilage and bone development
• Dopamine transporter deficiency syndrome, an autosomal recessive Parkinsonism dystonia