Department of Health (United Kingdom), a branch of government
Dermatitis herpetiformis, a skin disease
Designated hitter, a baseball rule
Desperate Housewives, a US television series
Diffie-Hellman key exchange, a cryptographic protocol
Doubled haploidy, a genetic status
Diamond Head, a promontory in Hawaii
Diamond Head (band), a British heavy metal group
Downhill, a skiing discipline
Downhill cycling, a bicycling discipline
Delaware and Hudson Railway (AAR reporting marks DH)
Independence Air, IATA code DH
United Arab Emirates dirham, a currency unit
Destiny Hope, Miley Cyrus` first and middle name
dear husband