DSD

DSD may refer to:

Medical

• Detrusor sphincter dyssynergia, disorder of urination
• Disorders of sex development, differences of sex differentiation

Technology

• Data structure diagram of a data model
• Direct Stream Digital, Sony and Philips digital recording trademark
• Document Structure Description, a schema language for describing valid XML

Organizations

• Defence Signals Directorate, an Australian intelligence agency
• Department for Social Development
• Det Stavangerske Dampskibsselskap, a Norwegian transport and shipping company
• Drainage Services Department, Hong Kong
• Davis School District, Utah
• Delaware School for the Deaf

Government

• United States District Court for the District of South Dakota, abbreviation in case decisions
• Downing Street Declaration, by UK PM and Irish Taoiseach
• New Zealand Distinguished Service Decoration, a medal awarded by the New Zealand Defence Force

Media

• Do Something Different, a British CBBC television show

Other uses

• Deutsches Sprachdiplom (German Language Diploma), of the German Academic Exchange Service
• Discover Scuba Diving program
• Driver's Safety Device, or dead man's switch
• Raindrop size distribution in rain, snow, etc...
• Dsd, the Köppen climate classification for an extremely rare subarctic climate variant with dry summers and extreme winters