DH

DH, Dh or dh may refer to:

Flying

• de Havilland, a former UK aircraft manufacturer
• Decision height, an element of aviational instrument approach
• Independence Air's IATA code

Science and health

• Department of Health (United Kingdom), a branch of government
• Dermatitis herpetiformis, a skin disease
• Doubled haploidy, a genetic status

Measurement

• Degrees of general hardness (dGH) (English); A.K.A. Deutsche Härte (°dH) (Deutsch)
• DH register, the high byte of an X86 16-bit DX register
• Dirham
  • United Arab Emirates dirham

Methods

• Diffie-Hellman key exchange, a cryptographic protocol
• Digital Humanities, a community of practice combining technology with humanistic inquiry
• District heating, a method of heating multiple buildings from a central location

Places

• DH postcode area, in the United Kingdom
• Diamond Head, Hawaii

Sports

• Designated hitter, a baseball rule
• Downhill, a skiing discipline
• Downhill mountain biking, a bicycling discipline

Other uses

• Dear Husband, a shorthand phrase common in online forums
• The Deer Hunter, a 1978 film
• Delaware and Hudson Railway
• Demon Hunter, an American metal band
• Denavit–Hartenberg parameters, a type of robotics convention
• Desperate Housewives, an American television series
• Dh (digraph), in linguistics
• Die Hard, a 1988 film starring Bruce Willis
• Digital humanities
• Dior Homme, the menswear division of Dior
• Documentary hypothesis
• Harry Potter and the Deathly Hallows, as referred to by the fandom

See also

• DH Press
• David Hart Smith