DH

DH, Dh, dh, or dH may refer to:

Places

• DH postcode area, in the United Kingdom for the area of Durham and surrounding towns
• Diamond Head, Hawaii, a volcanic tuff cone on Oʻahu

Organisations

• D+H, a Canadian financial services company
• Department of Health (United Kingdom), a department of the UK government
• DH Press, the Dark Horse Comics imprint that publishes novels
• Deccan Herald, an Indian newspaper

Science and technology

• Denavit–Hartenberg parameters, a type of robotics convention
• Dermatitis herpetiformis, a skin disease
• DH register, the high byte of a DX register in x86-compatible microprocessors
• Diffie-Hellman key exchange (D-H), a specific method of securely exchanging cryptographic keys over a public channel
• District heating, a method of heating multiple buildings from a central location
• Doubled haploidy, a genetic status
• Deuterium:protium (D:H), a ratio in deuterium-depleted water
• °dH, deutsche Härte, a unit of water hardness
• Dorsal horn of the spinal cord, or posterior grey column

Sports

• Designated hitter, a baseball rule
• Doubleheader (baseball)
• Doubleheader (television)
• Downhill (ski competition), a skiing discipline
• Downhill mountain biking, a bicycling discipline

Transportation

• de Havilland, a former UK aircraft manufacturer
• Decision height, in aviation
• Delaware and Hudson Railway (reporting mark DH)
• Independence Air (IATA code)

Other uses

• Dh (digraph), in linguistics
• Dear husband, a shorthand phrase common in online forums
• Donor husband
• Digital humanities, a community of practice combining technology with humanistic inquiry
• Documentary hypothesis or Wellhausen hypothesis, describing the origins of Judeo-Christian scripture
• Domestic Helper
• Informal abbreviation for Harry Potter and the Deathly Hallows

See also

• Degrees of general hardness (dGH), a unit of water hardness
• Dirham, a unit of currency in several Arab states
  • Moroccan Dirham abbreviated as Dh
  • United Arab Emirates dirham, unofficially abbreviated DH